# Zemplínska Šírava: The Summer Lake of Eastern Slovakia

Source: https://taply.sk/zemplinska-sirava/ (Taply, updated 2026-10-15)

Zemplínska šírava is a 33 km² reservoir near Michalovce in eastern Slovakia, nicknamed the Slovak sea, and the easiest way to reach it from Košice is a private transfer with Kiwitaxi or a rental car. It is used mainly for recreation, and summer is the season for swimming, boating, camping and lakeside resorts.
The lake was created by a dam built between 1961 and 1965 on the Laborec river. It is about 11 km long and up to 3.5 km wide, with an average depth of around 9.5 m and a maximum of about 14 m, so it warms up quickly in a hot summer.
This guide covers the lake, the beach areas, the season, getting there from [Košice](https://taply.sk/kosice/) and how to combine it with other eastern trips.

## Key points
- The reservoir covers about 33 km² and was built between 1961 and 1965.
- It is mainly a recreation area, busiest in July and August.
- Michalovce is the nearest town and a rail and road gateway.
- Check beach water quality and facility dates locally before you travel.

## Quick facts
- Area: About 33 km²
- Built: Dam 1961 to 1965
- Size: About 11 km long, 3.5 km wide
- Nearest town: Michalovce

## Best ways to get to Zemplínska šírava, ranked
1. **Private transfer with Kiwitaxi** (best for Families and groups): Kiwitaxi arranges private transfers between cities. From Košice or Košice airport, ask for a quote to the lake side you want, and whether the driver can do a pickup on a set return date.
2. **Rental car with Economybookings** (best for Independent travellers and small groups): A car gives you freedom to move between beach areas and to add Michalovce, Humenné or Poloniny. Economybookings lets you compare car hire offers, so check the deposit, insurance cover and fuel policy before you book.
3. **Cover for water and trips with EKTA** (best for Active travellers): EKTA sells travel insurance. If you plan boating, windsurfing or other water sports, compare activity rules and medical cover before you travel.
4. **Guided tours on Klook** (best for Visitors who prefer a guide): Klook lists guided day trips across Europe. Check whether a tour covering this area is listed for your dates and what the price includes.
5. **Train to Michalovce, then bus (ZSSK)** (best for Budget travellers with time): A rail connection leads to Michalovce, and local buses or taxis continue to the lake. Check timetables both ways, especially for evening returns.

## What the lake is

Zemplínska šírava is an artificial lake in the Michalovce District of the Košice Region, in the historic Zemplín area. The Laborec river feeds it and also carries its outflow, which eventually reaches the Bodrog. The reservoir has a volume of about 334 million cubic metres, and it also supplies cooling water to the Vojany power station. The name Slovak sea reflects its size by Slovak standards, and the shoreline holds a string of recreation areas.
Nearby settlements around the reservoir include Hôrka, Medvedia hora, Kamenec, Paľkov and Biela hora. Names and boundaries of beach areas change, so use the local map when you arrive.

## Lake at a glance

Question | Answer | 
Area | About 33 km² | 
Length and width | About 11 km by 3.5 km | 
Depth | Average 9.5 m, maximum 14 m | 
Built | Dam constructed 1961 to 1965 | 
Main use | Recreation | 
Nearest town | Michalovce |

## What to do

Most visitors come for swimming and sunbathing, and the shoreline has beaches, campsites, chalets and food stalls in season. Boats, pedal boats and windsurfing are common on a lake this size, and a promenade and flat shoreline paths suit walking and cycling. Facilities vary by area, from simple camping to larger resort complexes, and many operate seasonally, so confirm dates before you arrive.
Families use the lake for easy beach days. Couples and groups often combine a day on the water with an evening meal in Michalovce. For other water options see [thermal spas in Slovakia](https://taply.sk/thermal-spas-in-slovakia/) and [aquaparks in Slovakia](https://taply.sk/aquaparks-in-slovakia/).

## Choosing a shore

The reservoir is long, and the character of the shore changes from place to place. Some areas are built up with chalets, restaurants and organised beaches, while others are quieter, with a simple path and a patch of grass. Pick the busy end if you want services and nightlife, and the quiet end if you want space. Look at a current map, and ask your host or the local information point which beach has lifeguards, parking and shade on your dates.
Parking at popular beaches can fill by late morning on hot weekends, so arrive early or use a transfer, which leaves the driver to deal with the car.

## Best season

The swimming season is the warm summer period, roughly July and August, and weekends are the busiest. June and early September are calmer and good for walking, cycling and quiet days, but beach services may be limited. Spring and autumn suit cycling and bird watching more than swimming. See [Slovakia in summer](https://taply.sk/slovakia-in-summer/) and [best time to visit Slovakia](https://taply.sk/best-time-to-visit-slovakia/).
Because the lake is shallow it can warm quickly, and warm water can bring algae in some summers. Check for local notices on water quality before you swim, and follow lifeguard instructions where beaches are supervised.

## How to get there

From [Košice](https://taply.sk/kosice/) the road to Michalovce is a regular route, and the lake is a short drive beyond. Allow roughly one to one and a half hours by car, depending on traffic and which part of the shore you choose. Trains also run toward Michalovce, but you need a bus or taxi for the lake shore. See [car rental in Košice](https://taply.sk/car-rental-kosice/), [Košice airport to the city centre](https://taply.sk/kosice-airport-to-city-centre/) and [driving in Slovakia](https://taply.sk/driving-in-slovakia/).

## Cycling and walking

The shoreline has paths that suit easy cycling, though surfaces differ by area. If you do not bring a bike, check local rentals at the resorts. For general advice read [cycling in Slovakia](https://taply.sk/cycling-in-slovakia/) and [bike rental in Slovakia](https://taply.sk/bike-rental-slovakia/). A lap of the whole reservoir is long, so plan sections rather than the full shoreline in one go.

## Combine it with other stops

The lake pairs naturally with the towns of eastern Slovakia. Add [Prešov](https://taply.sk/presov/) or [Bardejov](https://taply.sk/bardejov/) on a longer trip, or head to [Poloniny National Park](https://taply.sk/poloniny-national-park/) for forest and dark skies. A road trip from Košice could include the lake, the Slovak Karst and a night in a guesthouse, see [Slovak Karst](https://taply.sk/slovak-karst/) and [day trips from Košice](https://taply.sk/day-trips-from-kosice/).

## Practical tips

- Book summer accommodation early, since July and August fill up.
- Bring sun protection, water and cash for small stands.
- Check water quality notices and swim only in marked areas.
- Expect crowds at weekends and plan arrival before late morning.
- Travelling with a pet? See [Slovakia with a dog](https://taply.sk/slovakia-with-a-dog/) for rules.

## Step by step: a lake day from Košice

- Check the weather and water quality notices the day before.
- Leave early to beat weekend traffic and to find parking.
- Pick a beach area with services, and bring a towel, sun protection and water.
- Swim in marked areas and keep children in sight.
- Have lunch at a lakeside stand and spend the afternoon on the water or on the path.
- Return before the evening traffic, or stay for dinner in Michalovce.

## Who should skip it

The lake is a domestic holiday area, so it does not offer the sights of a major tourist destination. If you have only a few days in Slovakia and want castles, mountains and old towns, put [Bratislava](https://taply.sk/bratislava/), the [High Tatras](https://taply.sk/high-tatras/) or [Slovak Paradise](https://taply.sk/slovak-paradise/) first. The lake works best for travellers who are already in the east, who travel in summer and who like a relaxed beach day more than a sightseeing list.
Visitors who dislike crowds should avoid peak weekends, and anyone who needs well-organised public transport should plan carefully, since local buses are limited in the evening. A quiet weekday in late June or early September gives most of the benefit with far less crowding.

## FAQ

**What is Zemplínska šírava?**
A large reservoir near Michalovce in eastern Slovakia, about 33 km², used mainly for recreation. It is nicknamed the Slovak sea.

**When was it built?**
The dam was constructed between 1961 and 1965.

**Can you swim in Zemplínska šírava?**
Yes, it is a swimming lake in summer. Check local notices on water quality and swim in marked areas.

**How do I get there from Košice?**
By car or private transfer it takes roughly one to one and a half hours. By train you go to Michalovce and continue by bus or taxi.

**When is the best time to visit?**
July and August for swimming. June and September are quieter, and many seasonal services may be limited.

**Is it worth a visit for foreign tourists?**
It suits a beach break in eastern Slovakia, but it is a domestic holiday area, not a major international sight. Combine it with other eastern stops.