Mljet & Lastovo Sailing Area Guide: National Park, Hidden Bays & Restaurant Moorings

Updated May 2026.

Mljet and Lastovo are the two southernmost islands in the Croatian charter circuit — quieter, wilder, and more committed than Hvar or Korčula. Mljet has the best-known feature on the southern Adriatic (the saltwater lakes inside the National Park); Lastovo is the antithesis (no resort, almost no nightlife, the darkest island sky in inhabited Croatia). Most charterers visit them as part of a Dubrovnik or Korčula week. This guide covers the practical operations, restaurant moorings, anchorages, and the specific 3-day route that does both islands properly.

Mljet — what makes the National Park different

Mljet’s western third is the National Park — a protected ecosystem with two saltwater lakes (Veliko Jezero, Malo Jezero) connected to the sea by a narrow channel, dense pine forest, and a Benedictine monastery on St Mary’s Island in the centre of the larger lake. The park is unusually structured for the Mediterranean: it’s a fully terrestrial-and-marine protected area, with strict anchoring restrictions, a paid entry, walking and biking trails, and the monastery-turned-restaurant in the lake’s centre. Charterers visit either as a single overnight or as a 2-night base.

The two Mljet park entrances

Pomena is the western entrance — a small village on Mljet’s northwestern coast, a working harbour with stern-to mooring on the town quay, restaurant pontoons, and a 5-minute walking trail to Veliko Jezero. Most charter boats enter the park through Pomena.

Polače is the eastern entrance — a larger bay on the north coast, with deeper water, mooring buoys, and a larger ferry-and-tour-boat traffic. The Roman ruins (a 4th-century AD palace) sit at the head of the bay. Polače is the working alternative if Pomena is full.

Lake-circuit logistics inside the park

From Pomena or Polače, the lake circuit takes 3–4 hours including the boat-shuttle to St Mary’s Island. The shuttle runs 2–3 times a day in season; check timing on arrival. The monastery-turned-restaurant on the island is a working lunch venue (book ahead, simple seafood, fixed menu). The walking and biking trail around Veliko Jezero is roughly 10 km on flat ground — easy and worth a half-day. Snorkelling in the lake is permitted but the water is brackish.

Mljet outside the park — the southern bays

The southern coast of Mljet, outside the park, is a different cruising experience — empty bays, no infrastructure, deep clear water. Saplunara on the southeastern tip is the largest sandy beach in the southern Adriatic, with anchorage in 6–10 metres on sand bottom. Limuni on the southwestern coast is the secret — a small bay with tender access to a hilltop walk and almost no charter traffic. Okuklje on the southern coast is a deep, sheltered bay with several restaurant moorings — the dinner option for crews not staying in Pomena.

Lastovo — the quietest inhabited island

Lastovo is 24 NM south of Korčula and 30 NM west of Mljet. The crossing is open-water — the leg most Lastovo-bound charterers describe as the most committed of their Croatian week. Once at Lastovo, the cruising ground is one of the smallest and most distinctive in the Adriatic.

Lastovo town is the main village, sitting inland (not at the coast — unusual for a Croatian island). The principal harbour is Skrivena Luka (“hidden harbour”) on the southern coast — a fully-enclosed bay with a single restaurant pontoon, a tiny village, and almost no light pollution. Crews who anchor here describe the night sky as the best on the Adriatic. Ubli on the western coast is the working harbour — ferry stop, fuel dock, basic provisioning.

The 3-day Mljet-Lastovo loop

The standard 3-day loop, attached to a longer Dubrovnik or Korčula charter:

Day A — Korčula or Dubrovnik to Pomena, Mljet (16-22 NM). Enter the park, take a buoy at Pomena, walk to the lakes, dinner ashore at Konoba Galija or Konoba Pomena.

Day B — Pomena to Skrivena Luka, Lastovo (24 NM). Open-water crossing. Anchor in Skrivena Luka, eat at the single restaurant, sleep under stars.

Day C — Skrivena Luka to Korčula or Dubrovnik (30 NM). Long return. The week pattern returns to the more populated southern Croatian charter circuit.

Restaurant moorings — what’s available where

Mljet has the better restaurant-mooring scene. Konoba Pomena, Konoba Galija, and Konoba Stermasi at Pomena offer free moorings with dinner reservations. Konoba Karmela at Okuklje is the southern alternative. Lastovo’s Konoba Augusta Insula at Skrivena Luka has 4 moorings; Konoba Triton at Zaklopatica (Lastovo’s eastern coast) has 6 moorings and is the more reliable booking option.

Park fees, paperwork and seasonal rules

Mljet National Park entry is roughly €15–25 per person in 2026, paid at Pomena or Polače park gates, with multi-day passes available. The fee includes the boat shuttle to St Mary’s Island. Lastovo is a Nature Park (lighter regulation than a National Park) — no entry fee, but anchoring restrictions apply in some bays. Pre-trip: download the official Croatian National Parks app for park-specific rules and any seasonal advisories.

What kind of boat fits the Mljet-Lastovo route

Both monohulls and catamarans work. Mljet’s mooring buoys handle catamarans; Pomena’s town quay is monohull-friendlier. Lastovo’s restaurant moorings split — Skrivena Luka takes monohulls more easily, Zaklopatica works for both. The 30-NM Lastovo crossing favours boats with reliable diesels and a competent skipper. The catamaran vs monohull guide covers the broader trade-off.

The honest mistakes most charterers make

The first is visiting Mljet only for one night. The lake circuit and the park walks need a full day; arriving at 17:00 and leaving at 09:00 the next morning misses 80% of what makes the park different. The second is skipping Lastovo. Crews who add the extra day for Lastovo find it the highlight of their week; crews who skip it leave thinking the southern Adriatic was a disappointment. The third is not booking restaurant moorings. Skrivena Luka’s pontoon takes 4 boats; in peak season, walk-up arrivals get the anchor.

Where to fit Mljet and Lastovo into a longer charter

The standard pattern is a 7-day Dubrovnik-based round trip with Mljet and Lastovo as Day 2 and Day 4 (see the Dubrovnik itinerary). The alternative is a 14-day Split-to-Dubrovnik one-way, with Mljet on the way south (Day 6) and Lastovo as a side-trip (Day 7-8). Both work. The Croatia sailing guide covers the broader regional choice.

Frequently asked questions

Is Mljet worth a 2-day visit?

Yes. The park’s lake circuit, the monastery, and the walks need a full day. Most repeat charterers do 2 nights — one in Pomena, one in Polače — to do the park properly.

How big is Lastovo and what’s there?

Small — about 53 km², population 800. The main draws are Skrivena Luka, the dark night sky, and the slower pace. Cultural highlights include a Renaissance-era town and small remote churches in the inland villages.

Can I sail to Lastovo without going through Mljet?

Yes — Lastovo is 24 NM south of Korčula, accessible directly. Most weeks combine both because they’re close geographically and complementary. See the Dubrovnik itinerary for the standard route.

Are restaurant moorings reliable in peak season?

Skrivena Luka and Zaklopatica fill by 18:00 in July and August. Pomena moorings turn over by 17:00. Phone or VHF reservations 24 hours ahead are mandatory in peak weeks.

What’s the realistic 2026 cost for a Mljet-Lastovo loop?

Add €100-200 per crew member to a Dubrovnik-based 7-day budget. Mljet park fees are the main extra cost. Restaurant dinner ashore is the main spend driver.

Provisioning before entering the southern circuit

The Dubrovnik base (ACI Komolac) handles substantial provisioning at the Tommy hypermarket near Slano. Korčula has a Konzum and a Studenac. Mljet has small village shops only — Pomena and Polače stock basics. Lastovo’s Ubli has limited provisioning. Plan to provision a substantial week’s worth in Dubrovnik or Korčula before entering the Mljet-Lastovo loop. Mid-week top-ups are restricted to the small island shops.

The Saplunara beach experience

Saplunara on Mljet’s southeastern tip is the largest sandy beach in the southern Adriatic. The bay anchors well in 6-10 metres on sand bottom. Three small konobe sit on the seafront — Konoba Saplunara is the long-running family-run option. The hilltop walk above the beach reveals views over Mljet’s southeastern coast. Saplunara is the marquee non-park stop on Mljet and is often paired with a Pomena overnight to do the island fully.

The Lastovo darkness — a unique sailing feature

Lastovo is one of the few inhabited Croatian islands with no significant light pollution. The Croatian government designated the island a “dark sky” candidate area in 2018; some bay-side astronomy events run in shoulder seasons. Crews anchored at Skrivena Luka regularly spot the Milky Way, satellite tracks, and meteor showers. The combination of dark sky, sheltered anchorage, and quiet village makes Lastovo a unique overnight in the Mediterranean charter circuit. Most charter crews who include Lastovo describe the night as the highlight of their week.

Mljet’s wildlife and walking culture

Mljet’s pine forest hosts mongooses, wild boars, and one of the largest deer populations on a Croatian island. The walking and biking trails inside the National Park run roughly 30 km of marked routes. Most charter visits do the inner-lake circuit (10 km, flat, 3 hours); fitter crews do the loop around Veliko Jezero plus an outer-coast section. Bicycles are rentable at Pomena and Polače for €15-25 per day. The wildlife-and-walking experience is a strong selling point for crews who want a charter week with active land-side options.