Get some great family photos, but make sure you’re not in any of them.
Spend forty minutes in a play park despite it being 160oC.
Build a complicated castle/deep hole on the beach.
Eat chips with everything and ice cream after everything.
Whilst on beaches, glance enviously at the bare breasts of your European counterparts.
Last but not least you must drunkenly consider investing in a time share or sailing the Med for a year or similar.