With recent high temperatures, Guernsey Coastguard is urging islanders to prioritise safety when heading in to the sea.
The Bailiwick's sea emergency team flag up “tombstoning” - where people jump off piers and rocks into the sea - as a particularly dangerous activity.
Captain Jerome Davis says there are safer way to cool off.
"We cannot overstate how dangerous it is to quite literally jump into the unknown.
You can never tell what is hidden from view under the surface, such as rocks concealed by the waves, or other objects floating below.
Just the impact with the water from enough height can cause serious injury or paralysis."
He advises those who wish to jump into the sea to do so under the guidance of a qualified coasteering instructor.
If you see someone in the water who appears to be in danger, please call 999 or 112 and ask for the Coastguard.
Alderney Literary Festival cancelled
Guernsey businesses brave access issues
Relationships between Guernsey, Alderney and Sark to be reviewed
Healthy heart initiative launches at Guernsey Library
Group to examine the complaints process of Guernsey's health service
Dornier aircraft lands in Guernsey for the final time
£130,000 needed to treat Guernsey toddler's brain injury
Channel Island pooches compete for Dog of the Year title
