At Cleethorpes for the weekend decided to take the dog on a quiet beach we found.Walking along about 10 metres from the entrance and... I sunk.Apparently "quick mud" is a thing here and at least weekly the coastguards have to rescue people ive since found out.I was up to my thighs and couldn't move.Eventually dh and a good samaritan got me out! I then had to do a long walk back to the accommodation lathered in mud. there were no signs warning people at all.Wine has eased my trauma.