On this snorkeling trip, skip the crowded ferries and expensive charter yachts. Instead, swim and snorkel around the sprawling reefs of Tanjung Jepun and Blue Lagoon in a traditional Balinese spider boat. Spend the whole day snorkeling at both locations, taking your time to explore each reef and the rich variety of marine life living among the coral. Look out for everything from colorful angelfish to reclusive moray eels.