Cheap or free date night ideas?

[DifficultPifcultLemonDifficult]

Does anyone have any ideas?

We have been skinny dipping, toasted marshmallows on the beach at night, and had a full on nerf gun war.

All ideas welcome, however childish

We dont live in an area with much to do (museums and the like) but we have a beach, plenty of secluded spaces and lots of woodland etc.

TIA

Where is this skinny dipping beach, I might fancy...

YogaLite in Scotland, and it was bloody freezing we went at night, Greenpeace would have tried to rescue me if they saw me during the day

Today calls for a snowball fight! Unless you've not had it if you live near the coast.

Unfortunately no snow here, just lots and lots of ice as I discovered when I fell on my arse this morning

Hide and seek in the woods!

Ooh that's a great idea 3rd thank you

Hunger Games with water pistols (in the summer).

Churches are free too look round.

Tree bark rubbing carve initials into trees
Camp on beach well above high tide over night, hot soup , hot chocolate, watch a scary film .
Are there any craft center near you where you can try your hand at pottery , painting , or even be a model in a life drawing ( not exactly a date but it would certainly give you both something to laugh about in the future)