Climb onboard sydneys fastest commercial vessel for a coastal journey like no other departing daily from circular quay ocean extreme operates the only adventure vessel with an unrestricted offshore licence once you pass all of sydneys stunning harbour landmarks you will be taken offshore and out into the open ocean at speeds of up to 100kmph its here that adrenalin really gets pumping as you jump the waves on your journey down the coastline all the way to bondi beach for a photo opportuni