The short version
Vrelo is the cave that Matka’s boat trips visit. It sits on the right bank of the Treska river, about 1.5 km up the lake from the dam (Travel2Macedonia, ShowCaves). There is no path to it, so you go by boat or kayak.
The visit is short and easy. A lit walkway leads through a dry cave to two small lakes. Below that, a flooded passage has been explored by cave divers to depths that sources report differently. That is the part you read about online, and it is not part of the boat trip.
If you are weighing it against the rest of the day, see our boat and kayak guide for the canyon cruise options, or day tours from Skopje if you would rather have transport arranged.
How to reach it
The boats leave from the landing near the dam, beside the Canyon Matka hotel and restaurant. Getting there from Skopje covers the bus and car options to reach that point.
Minimalist Journeys says the cave is on the far side of the lake, so you cannot reach it on foot. Voices of Travel says the boats carry about 10 to 15 people and that it takes about 20 minutes to reach the cave. North Macedonia Guidebook says boats leave when they have enough passengers rather than to a timetable, and mainly in daylight.
You can paddle there instead. Voices of Travel reports about 45 minutes out, about 30 minutes inside and about 40 minutes back for a self-guided kayak trip.
What it costs
Prices are in Macedonian denar (MKD) and paid in cash. Guides do not agree, and operators set their own rates, so treat these as a range checked in October 2026.
- A 30-minute cruise without the cave: 200 MKD (Passport Symphony, March 2026; Traveltomtom, February 2026).
- The boat trip including the cave: 400 MKD (Passport Symphony, March 2026; Voices of Travel, December 2025) or 500 MKD (North Macedonia Guidebook, August 2026; MacedoniaTOP).
- Cave entry: ShowCaves listed 30 MKD for adults and 25 MKD for children aged 4 to 17 in 2022, with under-fives free. Voices of Travel says entry is free. Other guides fold it into the boat price.
Ask at the landing whether the fare includes the cave. Kayak hire is separate: see the boat and kayak page.
How long you are inside
ShowCaves lists a guided route of 180 m, lasting about 20 minutes, for groups of up to 20 (2022 information). Minimalist Journeys says the lights run off a generator and the guide switches them on when a group arrives, so you do not get to wander at your own pace.
Boat trips are the bigger time cost. ShowCaves and MacedoniaTOP both describe the whole trip as about an hour. Adventurous Miriam and Traveltomtom describe a tour of about two hours. Plan for one to two hours and you will not be caught out.
What you see
From the concrete pier, a short climb leads to the entrance, and stairs take you down inside (Hole in the Donut). Live the World describes three areas in turn: a first chamber it calls the concert hall, a hall of cones and a hall of lakes.
The best-known formation is the Pine Cone. ShowCaves gives it as a stalagmite 3 m high. Live the World describes a cone about 2 m high, so sizes vary by account.
At the far end are two lakes. ShowCaves gives the small one as 8 m long and 15 m deep, and the larger as 35 m long and 18 m deep. It adds that underwater formations here grew before the dam was built and were flooded later. Live the World calls one shore the Russian beach.
The lighting is incandescent and coloured. ShowCaves counts the coloured light as the one drawback. The same page lists the air at 8 °C and the water at 5 °C, so bring a layer even in summer.
The depth claims, in order
This is the most contested part of Vrelo, so here is who reported what. These are dives and estimates by others, not our measurements.
- 2009: news reports said an Italian team, with Luigi Casati named in one, reached 190 to 192 m (eTurboNews, August 2009; ShowCaves; Live the World).
- 2010 or 2012: Casati reached 212 m. ShowCaves and Telegraf say 2010. The Vrelo diving club’s own site says 2012. Telegraf reports his light failed at depth and he turned back.
- 2016 or 2017: Polish diver Krzysztof Starnawski. Live the World says 230 m in 2016, ShowCaves says 240 m in 2017, and the club says 242 m in 2017.
- 2025 or 2026: the club’s site credits Polish diver Bartłomiej Pitala with 287 m in October 2025. A March 2026 press release from the President’s office reports 287 m for “Bartlomiej Pytala”, describing it as a recent expedition.
- Estimates: Telegraf and eTurboNews say speleologists estimate the system could reach 330 m. That is a prediction, not a dive.
- The dam operator EVN and Wikipedia’s article on the lake both say more than 203 m. That is a minimum, not a measurement of the bottom.
Be wary of “deepest in the world”. ShowCaves notes that Hranice Abyss in Czechia, at 404 m, has been the deepest water-filled cave since 2016, and that such records change often.
Diving and other caves
North Macedonia Guidebook says the deep underwater section is for specialist divers only. The Vrelo club describes itself as specialising in technical and cave diving. Travel2Macedonia says access needs authorisation from a Skopje caving club, SD Peoni, and that diving equipment is required. Recent boat-trip guides mention no permit for the lit section.
Skopje’s Parks and Greenery site lists three caves in the canyon, Vrelo, Ubava and Krstalna, plus a flooded cave it names Podvrelo. Wikipedia says the canyon has ten caves, from 20 m to 176 m long. We found no sourced visitor route for any cave other than Vrelo. MacedoniaTOP advises against entering caves or unfamiliar routes without proper guidance.
Is it worth it?
The lit route is short, about 20 minutes by ShowCaves’ figure, and the coloured lighting is not to everyone’s taste. Judge it as a stop on a boat ride rather than a destination on its own. If you want to combine it with walking, see hiking at Matka and St Andrew’s Monastery, both within easy reach of the landing. For timing, when to visit covers seasons.
