I'm not much of a swimmer, but you don't need to swim against a current to get out. Trying to do so would be a potentially fatal waste of energy.
Although if the current is moving down vertically it’s best to fight it - depending how deep it actually goes.
@withered_preacher started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
I'm not much of a swimmer, but you don't need to swim against a current to get out. Trying to do so would be a potentially fatal waste of energy.