Unfortunately, there are no museums in Nikaupara. However, you can visit Rarotonga Island, which is the largest island in the Cook Islands and has several museums such as the Cook Islands National Museum and the Beachcomber Gallery.
As a language model, I don't have access to information on local dishes in Nikaupara specifically, as it is a very small island with a population of around 200 people. However, some popular Cook Islands dishes that you may find on the larger islands include:
1. Ika Mata: A dish made with raw fish marinated in coconut cream and lime juice.
2. Rukau: A side dish made from taro leaves cooked in coconut cream.
3. Eke: Grilled octopus served with taro or cassava.
4. Curried lamb: Lamb curry made with coconut milk and local spices.
5. Poke: A sweet dessert made with mashed banana, coconut cream, and sugar.
Keep in mind that these dishes may vary in preparation and ingredients depending on the specific island and its cultural influences.
Nikaupara is a small island with a population of only about 100 people, and it is not a typical tourist destination. However, some fun activities that local people enjoy on the island include fishing, snorkeling, swimming, and taking walks or hikes to explore the natural beauty of the island. You could also try out traditional Cook Islands dance and music by attending events or talking to locals.