Nestled by the seaside, Väggabadet offers a refreshing aquatic experience with both outdoor and indoor swimming pools. In the summer, four outdoor pools provide a picturesque setting for a dip. Indoors, the facility features a children's corner, a water slide, a jacuzzi, and a relaxing pool. Beyond the aquatic offerings, Väggabadet caters to fitness enthusiasts with a gym. A tanning salon and a convenient cafeteria complete the experience.

The five historical museum buildings on Museum Island have been part of UNESCO world heritage since 1999, and represent a collection that is unique in the world. Each museum building on the island was designed by famous architects of their time. Museum Island is home to collections in the Altes Museum (Old Museum), the Alte Nationalgalerie (Old National Gallery), the Bode Museum, and the Neues Museum (New Museum). The Pergamon Museum is closed for renovation until 2037 or 2043. The exhibitions cover prehistoric times, ancient history and 19th-century art.

The Cook Islands Christian Church in Avarua is a striking old building crafted from white coral, originally erected in 1853. It's well worth a visit, particularly for its intriguing graveyard. In front of the church, you’ll find a monument dedicated to Papeiha, a Polynesian missionary, and the grave of Albert Henry, the first Prime Minister of the independent Cook Islands, complete with a life-size bust.

If you’d rather keep your feet dry, consider taking a glass-bottom or semi-submersible boat to view the vibrant tropical fish and stunning corals. For those seeking more active water fun, windsurfing, sailing, catamarans, and kayaking are excellent choices. Muri Lagoon on Rarotonga is particularly popular for sailing activities. Additionally, both Rarotonga and Aitutaki offer numerous hire facilities where you can rent all the necessary equipment for these exciting water sports.