Discover the hidden gems of Trincomalee with our curated list of the top 11 things to do in this captivating Sri Lankan destination. Dive into the azure waters of Nilaveli Beach, explore the ancient Koneswaram Temple perched on Swami Rock, and snorkel among colorful marine life at Pigeon Island National Park. Unwind with a leisurely boat ride in Uppuveli, witness majestic whales at the Trincomalee Harbour, and indulge in delectable seafood at local eateries. From historical landmarks to pristine beaches and thrilling water activities, Trincomalee offers a unique blend of adventure and tranquility for every traveler.