Cruise the thames river and discover the secrets of the deep at the sealife london aquarium on this adventurous tour in london hop on and hop off your river sightseeing cruise from any of the four conveniently located piers as many times as you like for 24 hours take in famous landmarks including big ben the houses of parliament the london eye tower bridge and the tower of london then visit the sealife london aquarium where blind cave fish bonnethead sharks bowmouth guitarfish and c