Even the most seasoned campers can be surprised by something. Here are the top 5 things that will surprise you at the slightest, and some that will come in handy on your next trip.

1. You can tell the ambient temperature by the crickets

Crickets and cicadas are like a snack in your wallet when it comes to summer camping, it just wouldn't be the same without them. But did you know you can use them to determine the ambient temperature? What's even more surprising is that you can convert the temperature from chirps to degrees Celsius quite accurately. Just count the number of chirps in 15 seconds and add 4.4 degrees Celsius.

2. People spend more nights on average in caravans than in tents

Given the amenities and convenience that RVs bring, it's perhaps not surprising that people who resort to this type of camping spend more nights at their destination. On average, RV users camp for 3.7 nights, while tent users camp for only 2.5 nights.

3. One of the most effective ways to reset the natural clock is by camping

A 2013 study found that it only takes one week of camping in nature, along with the elimination of human-produced light, to get the body clock back to its natural sleep rhythm. Our internal biological night begins at sunset and ends when we disrupt this natural clock just after sunrise by exposing ourselves to artificial light (phone screens, household lights, television... etc.).

4. Camping relieves stress and anxiety

Serotonin is the happiness hormone that helps us feel cool, relaxed and clear-headed. Being in the fresh air, exercising, feeling free and being able to escape the daily routine helps to increase serotonin levels. When camping, you have it all in one.

5. Married people are more likely to have sex while camping than at home

Maybe it's the romantic campfire, the starry skies, or snuggling in a tent on cold nights, but it's true. Most married couplesare more likelyto have sex while camping than at home, according to a 2015 study by OLPro, a British company that sells tents.