The death is being treated as unexplained and not suspicious, Cornwall Live reports.
Hell’s Mouth is approximately eight miles from Carbis Bay, where the world leaders are meeting, but there is currently nothing to suggest the incident is linked to the event.
A spokesperson for the Maritime and Coastguard agency said: “At approx. 11.15am today (11 June), HM Coastguard’s assistance was requested by Devon and Cornwall Police in the North Cliffs area.
“Portreath coastguard rescue team and the St Ives RNLI lifeboats were sent, alongside the search and rescue helicopter from Newquay.”
A statement from Devon and Cornwall Police said: “Police attended an area near Bassett Cove, Cornwall after a body was located at around 11.30am.
“Colleagues from the Coastguard and the RNLI also assisted officers at the scene.
“Police are currently treating the death as unexplained but there are not thought to be any suspicious circumstances.”