Where to keep valuables whilst glamping?

[ChipsAndSweets]

Heading to a holiday park in the Netherlands this summer, via ferry and train, and have booked a safari tent. It’s only just occurred to me that it won’t be safe to leave valuables/passports in the tent, and we don’t have a car to leave them in either.
I guess we can take them with us when out and about, but not sure what to do when swimming, as I don’t know how secure the lockers are. Does anyone have any bright ideas?

Campers are a pretty honest lot - we always used to leave stuff in the tent, and that's what other people did too.
If you're really worried, or have some very valuable valuables, you could buy a small safe.

Thanks for the reply. Definitely nothing particularly valuable, just thinking about phones, passports and any devices the kids want to bring. A mini safe might be worth looking into I guess - need to work out whether that would be more or less safe than swimming lockers.

I got something like this when i was holidaying on my own with kids and had no one to leave things with
https://www.amazon.co.uk/YOSH-Waterproof-Watertight-Underwater-smartphone-Transparent/dp/B06Y21DLWB/ref=mp_s_a_1_2_sspa?crid=1SWA6J1096Y00&keywords=waterproof+phone+pouch&qid=1685560502&sprefix=waterproo%2Caps%2C88&sr=8-2-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9waG9uZV9zZWFyY2hfYXRm&psc=1

Which campsite? In nl the big ones sometimes have lockers or mini charging lockers for phones and wallets at the swimming pool. You'll be able to keep an eye on stuff on the side of the pool while you swim. Otherwise a small lockbox works, or just put it under your air mat while you sleep. NL is pretty safe

Pop them inside a clean nappy, wrap it up like it’s a used nappy, leave it by the bin. Only the most determined thief will investigate 🤢

A mini safe can just be picked up and walked away with, no?

There is that, yes.