There are more than 1,000 islands in the Solomon Sea, and while you won’t be able to visit them all, this 10-day Silversea Expedition introduces some of most stunning (and lesser-known) spots. Start underwater, with a snorkel through Marovo Lagoon, the world’s largest saltwater lagoon, and along the coral mazes between Kohingo and Vona Vona Islands on the western side of New Georgia. In addition to striking natural beauty, the Russell Islands group—which includes Karumolun and Pavuvu—feature a mix of Melanesian and Polynesian cultures, while Roderick Bay on Ngela Sule is best known for the shipwreck in its shallow bay around which visitors can snorkel. You’ll have a wide array of beaches—each beautiful in its own way—in Santa Anta, Utupua Island, and Espiritu Santo Island (the latter is home to Champagne Beach, where the volcanic-sourced water comes up in bubbles). Pentecost and Ambrym Islands offer the chance to experience ancient cultures and rituals, such as the traditional “Rom” dance.