I generally want to jump into the water straight away, but will admit that sometimes the weather can bring down the better part of my enthusiasm.
The beach is the best place for a natural and free exfoliant! So get those bare feet running around in the sand back and forwards. Don't forget to take photos of your disappearing foot trails if you wade into the wet sand.
If I lived closer I'd love to make a habit of going to the beach alone. Sometimes having your family around is an obstacle when you'd like to do some rockpool exploring.