REVIEW · GREECE
River Trekking to the Waterfall in Andros
The best part of this Andros outing is the finish: after working your way along the Achla River, you reach Gerolimni waterfall, where a clear, cold pool invites you to swim. This is not a stroll to a viewpoint. You’ll step through the river, climb over rocks, and follow a guide through a route that can be hard to find alone.
I like the small maximum of eight people, which gives the guide room to help with foot and hand placement. I also like the practical touches: snacks and water are included, and pickup from your accommodation can be arranged. The catch is simple: you need moderate fitness and must be comfortable on uneven rocks and in cold water.
Key points to know before you go

- The waterfall is reached through the Achla River, not by a flat footpath.
- Swimming and jumping are part of the appeal, with one account describing a jump of about three meters or more.
- The route from the parking area takes about 30 minutes, though the rocky river section makes it more demanding than that number suggests.
- Groups are limited to eight people, with English-speaking guides such as Argie, Bill, and Corina.
- Pickup is available across Andros, but the return transfer costs an extra €25 per person.
- The four-hour timing fits a busy island itinerary, and the activity ends back at the starting point.
Following the Achla River to Gerolimni

The experience begins at Explore Andros, on the pedestrian street in Chora, at 10:00 a.m. If you arrange pickup, the company can collect you from accommodation anywhere on Andros Island and return you afterward. That service costs an additional €25 per person, both ways.
From the starting area, you head toward the Achla River. The exact early part of the transfer is less important than the change in pace once you begin walking. This is a nature outing, not a sightseeing bus trip. The guide sets the route and keeps the group together while you move through the river corridor.
The route includes shallow river sections, rocks, and short climbs. You may need to place your hands on the rock for balance, and the guide can point out safer places to step. The walk from where the vehicle parks to the waterfall is about 30 minutes, but the terrain gives that half hour some bite.
I would not judge this trek by distance alone. River walking takes more concentration than a normal trail, especially when the surface is wet or uneven. The experience is manageable for someone with moderate fitness, but it is not the right choice if you want a smooth path and a gentle stroll.
More Waterfall Treks in Greece
- River Trekking at Kourtaliotiko Gorge Waterfalls to Preveli Beach
★ 5.0 · 48 reviews - Andros: Achla River Trekking to the Waterfall
★ 5.0 · 11 reviews - River Trekking at Kourtaliotiko Gorge Waterfalls
★ 5.0 · 3 reviews
Why a guide matters on this route

The path to the waterfall is not always obvious. Without guidance, you could find yourself choosing the wrong line through the rocks or missing the best way along the river. A guide is useful here for more than company. You get help with balance, route finding, and pacing.
Argie, also referred to as Argiris, is described as especially attentive around families and less experienced walkers. Bill adds information about the surrounding area, including churches and old castles, while Corina is noted for explaining local plants and wildlife and helping people with foot and hand placement.
Those differences matter because this is a small-group activity rather than a fixed-speed procession. If one person needs a slower pace or a clearer explanation before a rocky section, the guide can respond. With no more than eight people, that support should feel personal.
The guides also bring a sense of place to the outing. You are not simply passing through a river to reach a swimming hole. Along the way, you can learn about the natural setting and some of Andros’ cultural sights. The supplied water and snacks help, too, since there is no suggestion of a café or shop along the route.
The waterfall pool is the reward

Gerolimni is the point that gives the trek its shape. After the river section, you reach a waterfall and a natural pool surrounded by woodland and rock. The water is described as very clear, but also cold. On a warm day, that chill can be welcome. You may need a moment to get used to it.
Swimming is included in the stop, and you can take time to sit near the water and look around. The pause is not rushed into a quick photograph before heading back. The outing allows for a proper break, which is important after the uneven approach.
For confident swimmers, the pool can also offer a more playful side. One account describes jumping from a height of around three metres or more, and another mentions a rope swing from above the water. These details add adventure, but they should not be treated as required parts of the activity. You can enjoy the waterfall without jumping.
I would follow the guide’s directions closely before entering the water. The available information does not specify the pool’s depth, and natural swimming areas can change. If you are unsure, ask the guide where it is safe to swim, jump, or use the rope.
The return takes a different route

After the swim and rest, you leave the river and cross a hiking passage back to the starting point. This keeps the outing from feeling like the same walk in reverse. It also means you should expect more walking after the waterfall, rather than assuming the swimming stop marks the end.
The full activity lasts about four hours. That gives enough time for the river approach, the waterfall stop, and the return, though the precise pace will depend on the group. If you want to swim, take photographs, or simply sit by the pool, the small group format is helpful.
The return path may feel easier than the river section, but you still need to watch your footing. Wet shoes, tired legs, and uneven ground are a poor combination. Move at the guide’s pace and keep enough energy for the trip back.
More Trekking Tours in Greece
- From Chania: Full-Day Samaria Gorge Trek Excursion & Guide
★ 4.6 · 3,191 reviews - From Rethymno: Samaria Gorge Full-Day Trek, Pickup & Guide
★ 4.5 · 1,610 reviews - Kourtaliotiko Gorge: Guided River Adventure Trek with Lunch
★ 4.9 · 106 reviews - Kourtaliotiko Gorge River Trek with Lunch! Pick-up Avaliable
★ 4.8 · 90 reviews
What the $84.33 price buys you

At $84.33 per person, this is not the cheapest way to see a natural site on Andros. You are paying for a guided experience rather than admission to a waterfall. The value comes from route finding, supervision, a small group, local interpretation, snacks, and water.
The guide is the key part of that calculation. Since the route can be unclear, the service removes the risk of wasting time or getting lost. The support also matters if someone in your group is not an experienced hiker. A guide who knows how to lead people over the rocks can make the outing more comfortable and more enjoyable.
Pickup is useful if you are staying away from Chora or do not want to arrange transport to the meeting point. At €25 extra per person for the return transfer, it is an added cost, so compare it with the price and effort of reaching the start on your own. The tour ends where it begins, which simplifies the rest of your day.
For a four-hour activity, the price makes the most sense if you value an active outing with a guide and swimming time. It is less appealing if you only want to see the waterfall briefly or prefer to explore at your own speed.
How demanding is the river trek?
The physical rating is moderate. That is a useful description, but you should picture the terrain rather than rely on the label. You will cross or walk beside the river, climb over rocks, and use your hands for balance in places.
One account calls the outing suitable for children over about nine, while another says it works for someone who is not an avid hiker. Those comments suggest that the route is accessible to reasonably active families, but they do not make it effortless. Children need to follow instructions and cope with uneven ground. Adults should be ready to assist young walkers if needed.
The cold pool is another consideration. You may love the contrast between a warm day and chilly clear water, but swimming is optional. Bring the attitude that the waterfall itself is worthwhile even if you decide not to get in.
I would choose sturdy footwear with a good grip. The supplied information does not state whether special river shoes are provided, so ask the operator what footwear they recommend before departure. Pack anything you need to keep dry, since the route follows the river and includes water contact.
Who will enjoy this Andros outing?
This experience suits you if you want more than beach time and have half a day available. It works well for couples, friends, active families, and anyone who enjoys a little uncertainty underfoot in exchange for a memorable natural setting.
It is also a good match for people who prefer a guide but do not want a large coach group. Eight participants is small enough for questions and individual help. The English-language format makes the activity practical for international visitors.
You may want to skip it if you have limited mobility, dislike climbing over rocks, or need a fully predictable path. The available information does not describe accessibility features, so ask the provider directly if you have specific mobility or equipment needs.
The outing also suits a packed Andros schedule. Four hours leaves time for another activity later in the day, though pickup and return timing can affect how much of the afternoon remains. Since the tour begins at 10:00 a.m., it is not an early-morning start.
Practical details that affect your day

The tour is offered in English and uses a mobile ticket. Booking confirmation is sent within 48 hours, subject to availability, so do not leave it until the last minute if your island schedule is tight. The activity is often booked about 32 days ahead, which suggests planning early is sensible during busy periods.
Free cancellation is available if you cancel at least 24 hours before the start time. Changes or cancellations inside that window are not accepted for a refund. The experience also depends on suitable weather. If poor weather forces a cancellation, you can receive a different date or a full refund.
A minimum number of participants is required. If that number is not reached, the provider offers another date or experience, or a full refund. These conditions are standard for a guided outdoor activity, but they are worth noting if your Andros stay is short.
The meeting point is Explore Andros, Πεζόδρομος Χώρας, Andros 845 00, Greece. The activity returns there unless you use the arranged accommodation transfer. Confirm your exact pickup time and location with the provider before setting out.
Should you book the river trek?
Book it if you want an active half-day with a clear payoff: a cold swim beneath a waterfall reached by a rocky river route. The strongest reasons to choose it are the small group, the helpful guides, and the fact that the path is not always easy to follow alone.
I would be especially comfortable recommending it to reasonably fit families with older children, couples who like outdoor activities, and first-time visitors who want local help on Andros. Argie, Bill, and Corina are all described as attentive guides with different strengths, from nature information to careful route support.
Skip it if you are looking for a flat walk, dislike cold water, or want to avoid any scrambling. The $84.33 price is fair for a guided, small-group outing with refreshments, but it only offers good value if you want the adventure as much as the waterfall.
FAQ
How long does the river trekking experience last?
The activity lasts approximately four hours, including the river trek, the waterfall stop, swimming time, and the return walk.
Where does the activity start and finish?
It starts at Explore Andros on the pedestrian street in Chora, Andros 845 00, Greece. The activity ends back at the meeting point.
What time does the tour begin?
The stated start time is 10:00 a.m.
Is pickup available from accommodation?
Yes. Pickup and return transfers can be arranged from accommodation anywhere on Andros Island for an additional €25 per person.
How many people can join the group?
The maximum group size is eight participants.
What happens if the weather is poor?
If the activity is canceled because of poor weather, you will be offered a different date or a full refund.
Latest treks added in Greece
- Half-Day River Trekking Stenosia from Kalamata★ 5.0 · 12 reviews
- Ios Island Trekking Tours: Discover Ios Unexplored★ 5.0 · 32 reviews
- Samaria Gorge Trek: Full-Day Excursion from Heraklion with Guide★ 3.5 · 6 reviews
- Private Trekking Rouvas Gorge★ 4.5 · 4 reviews
- River Trekking in Neda★ 4.5 · 7 reviews
- Crete: River Trekking at Preveli Beach★ 5.0 · 4 reviews
- River Trekking at Kourtaliotiko Gorge Waterfalls★ 5.0 · 3 reviews
- River Trekking at Kourtaliotiko Gorge★ 5.0 · 4 reviews
Waterfall Treks, compared.

Munduk Waterfalls Trek, Twin Lakes and Temple Tour
Read our review →
Khao Sok: Private Waterfalls and Wildlife Half-Day Trek
Read our review →
Selogriyo Temple and Trekking Java Rice Terraces, hidden waterfall -Nature Java
Read our review →
Rice Terrace, Holy Water Temple & Waterfalls Trek Tour
Read our review →
Trekking to Waterfall Adventure Tubing 45 mins. (Only Khao lak)
Read our review →
2-Days Jungle Trek, Waterfalls and Karen Village
Read our review →
Wild Elephant Anakulam & Waterfalls Tour(munnar valley Trekking)
Read our review →
Tamanique Waterfalls Complex Trek + El Tunco Beach
Read our review →Browse the lists this tour appears in
