I’m planning a multi-day gravel ride with a few friends. We would have to sleep in public campgrounds, which are also full of people because of the camping season. What is the best way to secure our bikes at night? As you might imagine, having your bike stolen 150 km (100 miles) away from home in the middle of nowhere might be a harrowing experience.

We’re afraid that locks won’t work because the thieves would literally have all night to remove them. There also might not be something to lock to (what do you do if you’re sleeping in an open field?). Furthermore, a group of expensive-looking bikes laden with camping gear would probably be an attractive target for thieves. Any tips?