Ha'apai cruising guide
Ha'apai is the low, reef-strewn middle of Tonga: coral islands on a bank between Vava'u and Tongatapu, with Pangai on Lifuka as the port of entry. NGA says the best anchorages are off the west side of Lifuka, and warns that buoys may be missing, landmarks are few, and reefs can be impossible to see at high water on a calm day. Further south, Ha'afeva and Nomuka sit among more reefs, with active volcanoes to the west.
- 1Pangai & Lifuka · Port of entry and reef anchorages
- 2Uoleva, 'Uiha & the eastern passes · Barrier-reef passes
- 3Ha'afeva & the Lulunga Group · Island group (local-knowledge anchorage)
- 4Nomuka & Nomuka Iki · Island harbour anchorage
Guides in this region, north to south
Pangai & Lifuka
Port of entry and reef anchorages
Pangai and Lifuka planning notes: Faka'amunei anchorage, the reef channels to Pangai, Taufa'ahau Wharf and clearing in at Ha'apai.
Uoleva, 'Uiha & the eastern passes
Barrier-reef passes
Ha'apai's eastern passes: Ava Auhangamea between Uoleva and 'Uiha, Ava Matamatavika, strong tidal streams, rips and the NGA anchorage.
Ha'afeva & the Lulunga Group
Island group (local-knowledge anchorage)
Ha'afeva and the Lulunga (Kotu) Group: Ava Fonuaika, the Tungua channel for larger vessels, the reef dangers and the Ha'afeva anchorage.
Nomuka & Nomuka Iki
Island harbour anchorage
Nomuka planning notes: Nomuka Harbour between Nomuka and Nomuka Iki, the NW approach, Mango, the reef-studded Otu Tolu area and currents.
Passes, harbours and hazards to plan around
- Pangai & Lifuka: navigate by eye; Mariner Patch, Lua Sii and Lua Matavai buoys may not be in place; inner anchorages need 5 m draft or less and local knowledge (NGA).
- Uoleva, 'Uiha & the eastern passes: Ava Auhangamea 3–4 knots and Ava Matamatavika 4–5 knots, with dangerous rips when an easterly meets the east-going stream; use at slack water (NGA).
- Ha'afeva & the Lulunga Group: Ava Fonuaika is the only pass a vessel should attempt through the southern reef; large vessels use the passage between Tungua and Doyland Reef (NGA).
- Nomuka & Nomuka Iki: harbour open to the north-west; Lua Vaila (3.7 m) mid-channel; the area south of Otu Tolu needs good light (NGA).
LINZ charts TO 401–TO 405 cover Ha'apai, including a 1:15,000 approach chart for Lifuka (TO 404) and Tofua and Kao (TO 405). NGA reports volcanic activity on Tofua in December 2022.
- Mayday on VHF 16, and set off your distress beacon (EPIRB or PLB) and leave it on until help arrives.
- Tonga Police emergency: 922
- Rescue Coordination Centre New Zealand, 24 hours: +64 4 577 8030. Tonga lies inside the New Zealand search and rescue region.
Clearing in and out
Tonga Customs wants its small-craft Advance Notice of Arrival at least 24 hours before your ETA, and a call to Maritime Radio on VHF 16 before you reach your nominated Customs port. Its ports-of-entry page (read 28 October 2026) lists Nuku'alofa, Vava'u, 'Ohonua ('Eua) and Taufa'ahau Wharf, Pangai (Ha'apai). Once you clear out on form C15, you must sail straight for your next overseas port. Each port page has the details.
Cyclone season
Tonga Meteorological Services' Tropical Cyclone Seasonal Outlook for 2026–2027 (released 28 October 2026, read 30 October 2026) gives the official season as 1 November 2026 to 30 April 2027 and notes that cyclones have occasionally formed outside it. It expects an average season, with 2 to 4 tropical cyclones affecting Tonga and a moderate to high chance of at least one severe tropical cyclone, and the highest risk from January to March 2027. It also reports drought declarations in force for Tongatapu, 'Eua, Ha'apai and Niuatoputapu, with Vava'u and Niuafo'ou under drought warning, so plan your water. NGA Pub. 126 adds that at Nuku'alofa sudden, violent west and north-west squalls are common from December to April.
Neighbouring regions
About these guides
These are free planning notes written by a working delivery skipper from public sources: LINZ charts and notices to mariners, NGA Pub. 126, the Tongan government's own pages and OpenStreetMap. They are not for navigation. Use the current LINZ chart corrected for notices to mariners, official tide tables and local advice. Each page shows when its facts were last checked.
Sources & credits
Written in our own words from NGA Pub. 126 Sailing Directions (Enroute) Pacific Islands, 13th edition (2025), corrected to 27 August 2026, Sector 2, the LINZ chart pages and notices to mariners, and official Tongan government pages, all read 28 October 2026.
LINZ. Chart titles, scales, editions and notices to mariners from the Toitū Te Whenua Land Information New Zealand (LINZ) chart catalogue. LINZ is the charting authority for Tonga. LINZ chart images are Crown copyright, licensed under CC BY 4.0; we link to them and don't reproduce them. Not endorsed by LINZ.
NGA. Pilotage background from NGA Pub. 126, Sailing Directions (Enroute) Pacific Islands, 13th edition (2025), U.S. National Geospatial-Intelligence Agency, a US Government work in the public domain. Some of its reports are decades old; where a page leans on an old report, we give the year. Not endorsed by NGA.
Government of Tonga. Clearance, immigration, quarantine, whale-watching and weather facts from the official pages and forms of the Ministry of Revenue & Customs, the Ministry of Agriculture, Food & Forests, the Ministry of Fisheries, the Ministry of Tourism and Tonga Meteorological Services, restated in our own words. The official versions prevail.
Ports Authority Tonga. Port of Nuku'alofa role and services from its own website, cited for fact only.
OpenStreetMap. Map tiles, facility positions, and anchorage positions that OpenStreetMap mappers imported from LINZ chart data, and the Ashore lists © OpenStreetMap contributors, ODbL.
Safety contacts. Rescue Coordination Centre New Zealand (Maritime NZ) and UK FCDO travel advice, checked on the date shown in the emergency box.
Need a boat moved to or from Ha'apai?
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