The Department of Infrastructure says Laxey Promenade is now closed.
Coastal overtopping means it's been forced to shut the route for safety reasons.
It says it'll reopen as soon as it can after the high tide has receded.
Mooragh Promenade and Queens Promenade in Ramsey are both shut as waves wash over the sea wall.
Filipino festival planned for Laxey
Glen Maye requisition meeting scheduled
Viking longboat races today
Postal vote applications have to be in soon
Mum launches petition over university support
Bus services north and south face disruption later
Wildlife Trust unveils woodland plans