The RNLI says it's asking The Government and watersports bodies to help clarify which activities will be allowed from tomorrow onwards.
They warn there's currently no beach lifeguards on duty, and will discuss concerns with partners before formally responding to the change in outdoor exercise rules.
It comes as the coastguard commander for South Devon is urging people to show respect for the coastline.
Drew Parkinson expects the numbers using it to start rising as people are allowed out for longer periods.
In a statement, The RNLI said: "Many people will want to visit the coast and participate in water-based activities such as swimming, kayaking, surfing, boating and angling.
"At present there are no RNLI lifeguards on beaches and although our volunteer lifeboat crews are fully operational, should they be needed, it is important that anyone visiting the coast understands the risk and takes the necessary steps to keep themselves safe.
"This will also help to reduce the demands placed on our lifeboat crews and other emergency services including HM Coastguard.
"In this way we can all work together to succeed in ensuring the coast is a safe place to visit."
Now, more than ever, people need to have respect for our coastline. I suspect it will shortly be inundated.— Drew Parkinson (@HMCG_AC10) May 11, 2020
Regardless of experience level, accidents happen. Think twice about what you’re doing, be responsible.
In a coastal emergency, ☎️ 999 for Coastguard. #MinutesMatter pic.twitter.com/4TjgWEpG6O