In the childhood / in my childhood, my parents often sent me and my brother to a summer camp. It’s better than staying in a dusty and stuffy city.

In that a place such as a camp there are always many interesting things happening.

/ At a place like a campsite, there are always many interesting things going on:

Walks in the forest, scary stories near the fire, building the huts / building huts – these are the true adventures for a child.

Once, we with friends ["мы с друзями"? - лучше перевод не так прямой:] my friends and I decided to go beyond the camp’s territory / beyond the bounds of the camp / beyond the camp boundary / beyond the camp's grounds. Of course, it was forbidden, and if we were caught, we would be deported / sent [less severe))] back home immediately. But curiosity and a sense of adventure moved us forward / on / onwards.

It was impossible to go through the main gate because of the guards, so we decided to climb over the fence. The territory of camp was big and after some searching we found a suitable place. Overcoming the obstacle, we were standing on uncharted land, anticipating / in anticipation of new discoveries. Looking around, we realized that we were in some kind of / sort of pit. It was dark and unfriendly (there). Suddenly, something was buzzed near my ear. Then again. Looking at my friends / As I looked at my friends, I noticed a bee on the shoulder of one of them. In the next moment I looked at my jeans and saw six or seven bees on them! We were next to the beehive! We screamed and ran. Climbing back over the fence, we were running like crazies, / We climbed back over the fence, and ran like crazy, brushing off the stinging insects.

Arriving at our room, we found that we had been / were stung by a dozen / dozens of bees. Legs and hands were swollen, everything was hurting / pain everywhere.

So, thus our adventure ended before it (even) started. Maybe the fortune saved us from a real trouble, and sent us back / caused us to return.

You have a great story-telling style, really good job.