The Deep Blue Dive Center, on Vuna Road opposite the Waterfront Cafe, is the only dive shop in Nuku'alofa. Diving on Sunday is possible. They offer full-day packages including two dives and lunch with reductions available for five or 10 dives. Snorkelers can go along at a reduced rate and an open-water certification course is available. Their 15-meter dive boat Deep Blue is always accompanied by a speedboat for fast pickups and deliveries. Exploring the underwater caves around 'Eua is a specialty.
Royal Sunset Island Resort off Nuku'alofa also offers scuba diving.
One of the favorite local dive sites is Hakaumama'o Reef, 14 km north of Nuku'alofa, a deep wall populated by large numbers of brilliant parrot fish. Malinoa Island to the southeast features a great variety of marinelife on the surrounding reef, plus a lighthouse and some old graves on the island itself. Both of the above are marine reserves, and taking fish, clams, or coral is prohibited. Black coral can be seen at Kings Reef just off Nuku'alofa. Visibility ranges from 15 meters within the Tongatapu Lagoon to 50 meters on the barrier reefs. A wetsuit is recommended during the cooler months, April-August.
The nine-hole Tonga Golf Club (closed Sun.) is opposite the indoor stadium at Alele near Veitongo on the road to the airport. Greens fees are inexpensive and it should be possible to hire clubs. Monday to Saturday from noon onwards the club bar is worth a stop. The Heilala Classic Golf Tournament is in June. The club is easily accessible on the Folaha, Malapo, Vaini, or Veitongo buses.
Other sporting activities available around Tongatapu include sport fishing with the Deep Blue Dive Center or Royal Sunset Island Resort and surfing arranged by some of the resorts along Ha'atafu Beach.
Friday or Saturday at 1500 (April-June) catch a game of rugby at the Teufaiva Stadium.