Several kayakers who became trapped in a remote beach cove in the U.K. were rescued this week after scrawling “we’re stuck” in the sand, coast guard officials say.

A volunteer crew was launched at about 4:30 p.m. Tuesday after a station in Cornwall received reports of a kayaker in difficulty, the Royal National Lifeboat Institution (RNLI) said. As the lifeboat headed out to sea they received more information from the coastguard.

It emerged the person was raising the alarm to help five more kayakers who were sheltering from changing sea conditions at Butterhole Beach after being trapped by an incoming tide. An image taken from the cliff tops at the beach showed the kayakers’ large SOS message.

According to the RNLI, a large charity that works independently of the government to save lives at sea, the kayakers were transferred to a lifeboat and did not require medical attention. Padstow Coastguard supported the operation from the large cliffs at Butterhole, officials said.