An early morning at the tidal pool at Cliftonville, Margate. The water is cold, really cold and those rough, metal pool steps do nothing to comfort the decent into the water. The temperature can drop to as low as 7degrees in the winter months and up as high as 20 degrees after a season of summer sun. But whatever the weather, the pool and its clean, constantly refreshed waters is used all year round. An early morning at the tidal pool at Cliftonville, Margate. The water is cold, really cold and those rough, metal pool steps do nothing to comfort the decent into the water. The temperature can drop to as low as 7degrees in the winter months and up as high as 20 degrees after a season of summer sun. But whatever the weather, the pool and its clean, constantly refreshed waters is used all year round.