Mount Colo rising behind coconut groves and a black-sand shore on Una Una

Northwest Togeans

Una Una

A volcanic island with the active Mount Colo, black-sand beaches and several dive sites.

Overview

About Una Una

Una Una is a volcanic island of about 146 km² north-west of the main Togean group. Its centre is Mount Colo, an active volcano with a crater around 2 km wide. The island is mainly visited for diving and for guided treks to the crater.

In 1983 a major eruption covered much of the island in ash and the population was evacuated. Today fewer than 2,000 people live in villages on the east coast. There are no roads; people travel along coastal paths or by boat.

Good to know

Una Una is further from the other islands than most visitors expect. Plan the crossing with your accommodation.

  • Book accommodation in advance and ask the resort to arrange the boat.
  • Crossings depend on the weather. Keep a spare day in your plans.
  • Treks to the crater require a local guide.
  • Tarsiers are found on most Togean islands, but not on Una Una.

Last updated

Location
North-west of the main island group
Access
Boat from Wakai or Kadidiri, across open water
Accommodation
Dive resorts with bungalows
Facilities
No ATM; limited electricity and signal
Suggested stay
2 to 3 nights

Activities

Things to do on Una Una

  • Mount Colo trek

    Guided · active volcano

    The trail passes through coconut groves to the crater rim. Treks must be done with a local guide; check current volcanic activity before going.

    Trekking

  • Diving

    Sites include Apollo, Pinnacle and Menara

    Dive sites with walls, large corals and schools of fish. Dive operators report visibility of 30 to 40 m on good days.

    Diving

  • Black-sand beaches

    Volcanic sand

    The dark sand gets very hot in the middle of the day. Wear sandals when walking on the beach.

  • Villages on the east coast

    Rebuilt after 1983

    Small villages connected by footpaths. Dress modestly when walking through them.

Stay

Where to stay on Una Una

All places to stay

Diving

Dive sites near Una Una

All dive sites

  • Una Una: Apollo, Pinnacle and Menara

    Una Una

    Walls and pinnacles off the volcanic island of Una Una, often rated the best diving in the Togeans, with 30 to 40 m visibility reported on good days.

Activities

Activities on Una Una

All activities

  • Trekking

    Una Una, Malenge

    Trails are unmarked and should be walked with a local guide. The main trek is to the crater of Mount Colo.

Good to know

Frequently asked questions

Is it safe to climb Mount Colo?

Mount Colo is an active volcano. Go only with a local guide, check the current status with your accommodation, and follow official advice.

Do I need a diving certificate?

For most dive sites, yes. Some dive centres offer introductory dives or courses; ask when you book.

How long is the boat crossing?

It depends on the departure point and the boat. The route crosses open water and may be cancelled in rough weather.

Destinations

Other islands

All destinations

Plan your trip

Getting to Una Una

Routes from the mainland gateways, boat connections and travel times.

Read getting there