Best campsites for rainy-day backup

Every UK camping trip carries a 40 percent chance of testing your character. The trick is to book a site where rain changes the plan, not the mood: an indoor pool across the field, a climbing wall by the gate, a museum city up the road or a palace with a very large roof.

Our rule of thumb: within 15 minutes of your pitch you want at least two dry-day options, one active and one cultural. Every site below clears that bar.