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Lake Itasy

A shallow highland lake in a volcanic district of crater cones, geysers and waterfalls west of Antananarivo.

Updated 21 October 2026

Typelake
WhereItasy
Nearest cityAmpefy
Best seasonApril to November
Time to allowOne to two days
Getting thereAbout 120 km west of Antananarivo via the RN1 to Ampefy
EntryFree; local guides for the surrounding sites

Lake Itasy is the fourth-largest lake in Madagascar, a shallow sheet of water at around 1,200 metres in a volcanic district scattered with old craters, cinder cones and lava flows. The lake itself is used for fishing and its shores are farmed, and the appeal is less the water than the landscape around Ampefy: the Lily waterfall, the cold mineral geysers at Analavory, crater lakes, and a viewpoint at the Virgin's rock over the whole basin. It is close enough to the capital for a weekend, which is what it mostly serves as, and the highland scenery of terraced rice, red earth and volcanic hills is very different from the coasts. Accommodation is a small number of hotels in and around Ampefy.

What you'll find

  • The shallow lake - fishing pirogues and farmed shores.
  • Volcanic cones - old craters and lava country around the basin.
  • The Virgin's rock viewpoint - the overview of the lake and hills.
  • Rice terraces - highland farming on the surrounding slopes.

When to go

April to November for dry roads and clear air. The highlands are cool and evenings are cold, so warm clothes are needed year round. The wet season turns the tracks around the lake to mud.

What to expect

The lake is shallow and choked with weed in places, so it is scenery rather than a swimming or boating destination. Sites around it are spread out and need a vehicle. Guiding is informal and negotiated at each site. Accommodation is limited and basic.

Nearby

The Lily waterfall and Analavory geysers are close; Antananarivo lies east.

Key facts

Heritage statusImportant Bird Area
Elevation1,221 m (4,006 ft)
Area35 km² (14 sq mi)
Location19.0667° S, 46.7833° E · map

Source: Wikidata, item Q3214947, read on 18 October 2026.

What to pack for Lake Itasy

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

  • Travel rod + reel - A packable multi-piece rod fits in a case and covers most holiday fishing. Find on Amazon
  • Reef-safe sunscreen - High SPF that will not bleach the coral you are swimming over. Find on Amazon
  • Swimwear - Needed at most public thermal pools; some traditional baths are nude and single-sex. Find on Amazon
  • A small tackle selection - Hooks, weights, line and a few lures or flies suited to local waters. Find on Amazon

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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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