Inspect your mooring tackle and renew all parts that show signs of serious wear. This should include quality of chain, splices, and condition of thimbles and shackles. Equip all mooring lines passing through bow chocks with chafing equipment which can include a short piece of rubber hose or vinyl tubing protecting the lines from wearing through. Wear and tear of mooring pennants at deck level has been the most common reason in Harwich for mooring failure. Inspect the security of bow cleats and eyes.
Sailing vessels extend mooring lines back to the base of the mast, remove and stow all sails.
Batteries driving automatic bilge pumps should be fully charged and float switches tested for good working order. Bilges should be cleaned of oil and contaminants. All through hull fittings equipped with valves as heads, holding tank valves, and exhaust overflows should be placed in closed position. Where practical add to the mooring scope by lengthening the painter. Be sure you maintain clearance with boats around you.