Sharks in San Diego Harbor? Not really, but you may see seals and dolphins as you enter their world. This not-to-be-missed swim is just one of many in the growing Enviro-Sports' Sharkfest™ Series. San Diego offers both comfortable water and air temperatures this time of year making it a perfect swim venue. The 1 mile swim will start at the 5th Avenue Landing behind the San Diego Convention Center and finish at the Tidelands Park beach at the foot of the Coronado Bridge on the Coronado side. The swim has been timed according to the local tidal conditions and will take place during "slack" tide. The event is limited to 500 participants.