What is the fine-grained topic of the following text: Hike, paddle or kayak your way to the national park to spend your day here, which can satisfy everyone from beach-dwellers, trails through forests or meet the local wildlife - including bellbirds, cormorants, gannets, little blue penguins and furry seals (found around the edge of Tonga Island). Only return the topic.
Exploring the wildlife and outdoor activities at a national park.