The highlight of this impressive aquarium in the basement of the KL Convention Centre is its 90m underwater tunnel: view sand tiger sharks, giant gropers and more up close. Daily feeding sessions for a variety of fish and otters are complemented by ones for arapaimas, electric eels and sharks on Monday, Wednesday and Saturday (see website for schedule). Free dives (RM424), cage dives (RM211), and a Sleep with Sharks (RM211) program for kids aged six to 13 are also available.