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Morské oko

A forest lake beneath the Vihorlat hills in eastern Slovakia, formed when a landslide dammed a valley.

Updated 2 September 2026

Typelake
WhereKosice
Nearest cityMichalovce
Best seasonMay to October
Time to allowHalf a day
Getting thereAbout 30 km northeast of Michalovce; a walk of about an hour from Remetske Hamre
EntryFree

Morské oko sits at around six hundred metres in the volcanic Vihorlat hills, a lake of about thirteen hectares formed when a landslide blocked a valley, surrounded entirely by beech forest with no development on its shore. The name means sea eye. It is reached on foot or by bicycle along a forest road, and a path climbs from it to Sninský kameň, a volcanic rock outcrop with a view across the whole eastern lowland.

Highlights

  • The lake - thirteen hectares of water ringed entirely by beech forest.
  • The landslide dam - the slope failure that created the lake.
  • Sninsky kamen - a volcanic outcrop above the lake with a long view.
  • The beech forest - old woodland covering the whole Vihorlat massif.

When to go

May to October is the walking season, with beech colour in October the best of the year. The forest road is closed to cars, so it is a walk or a ride. Winter access is difficult.

Before you go

There is no vehicle access to the lake and the walk in takes about an hour each way. Swimming is prohibited. Facilities at the lake are a single buffet that is not always open.

Nearby

Snina is north, and Zemplinska Sirava is southwest.

What to pack for Morské oko

Chosen from what this place is for. Tap a kit for the full checklist.

  • Reef-safe sunscreen - High SPF that will not bleach the coral you are swimming over. Find on Amazon
  • Padded shorts - The one thing that makes a full day in the saddle bearable. Find on Amazon
  • Quick-dry towel - A microfibre towel packs small and dries in minutes. Find on Amazon
  • Helmet - Bring your own if you have a good one; rentals vary wildly. Find on Amazon

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Plan your trip

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Opening times, ticket prices and seasonal closures change - check the official source before you go: official site.

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