Lovina is a beautiful region in Bali and much quieter than any other region in Bali. Here you can swim with dolphins and every shop or warung around the corner will offer you this experience. Ask around for the best price or book the tour I have listed. Don't forget to bring your action camera for a once in a lifetime experience. Don't worry, you won't have to swim to see the dolphins. You will be hanging onto a bar that is attached to the boat and they will slowly drive towards the dolphins so you don't have to swim.