Touristy to the core and annoying to everyone except passengers, this outfit loads groups of about a dozen in semiinflatable RIB speedboats with twin 245-horsepower engines and flits downriver to Canary Wharf, around the O2, or Greenwich from three farflung piers. Try in vain to make a lasting memory of St Paul’s flying past, your eyes blurry from estuary spray. Tours are 50 to 75 min. Its competition, offering similar thrills: Thames Rockets (; [tel] 020/7928-8933; £30–£44), which goes from close to the London Eye and from St Katharine’s Pier near the Tower of London to Canary Wharf; and Thames Jet (; [tel] 020/7740-0400; £29–£39).