Touristy to the core and annoying to everyone except passengers, this outfit loads you in semi-inflatable RIB speedboats with twin 245-horsepower engines and flits you downriver to Canary Wharf, around the O2, or Greenwich from Embankment. Try in vain to make a lasting memory of St Paul’s flying past, blurry from estuary spray in your eyes. Tours are 50 to 75 minutes. Its competition, offering similar thrills: London RIB Voyages (; [tel] 020/928-8933; £44–£50), which goes from close to the London Eye and from St Katharine’s Pier near the Tower of London, and Thames Jet; [tel] 020/7740-0400£28–£39).