Welcome to Deep Water Soloing
Deep water soloing (DWS) is a form of solo climbing which is performed over water. The water is solely used to protect the climber against injury. Partipients who enjoy deep water soloing generally only climb at high tide as this can offer the climber the most protection against falls.
DWS is still classed as a new form of climbing - but originated in the late sixites or early seventies in Dorset. DWS is a very pure form of rock climbing - your kit list usually includes a pair of climbing shoes and a chalk bag, the advantage of this form of climbing is that you dont have to carry a large amount of equipment with you, it just you vs the rock.
This form of climbing is not without its risks, the water offers you some advantages should you fall from the rock, but there is a difference between hitting the water safely and the other being that you can be winded, knocked out by the force of you hitting the water or hit rocks hidden from view under the waters surface