Many visitors visit the islands of Nha Trang Bay on a day’s excursion, where the beaches are perfect for doing very little and the crystal-clear water is ideal for scuba diving or a boat trip out to sea. The aquarium on the island of Mieu is home to turtles, coral, sharks etc. To get away from the crowds, why not rent a boat so that you can create your own itinerary which will steer clear of those operated by local travel agencies.