A jagged area of islands, inlets, and sunken valleys, the Marlborough Sounds at the top of New Zealand's South Island is a spectacularly beautiful part of the country. Although it's not a national park area, there are around 50 Department of Conservation-administered reserves, with lush native forest and birdlife. One of New Zealand's most popular multi-day hikes (the Queen Charlotte Track) cuts through the sounds, and there are plenty of day hikes, too. Plus, you don't have to be super-athletic to enjoy this area, with many scenic drives and wildlife-spotting cruises to enjoy. Seafood lovers are also in luck, as New Zealand green shell mussels are farmed in the sounds, meaning you can enjoy big, fat, fresh-out-of-the-sea mussels with waterside views.