"This story happened many years ago. As far I (CAN) remember (,) I was (A) seventeen-year-old boy then. As a gift for my birthday(,) MY PARENTS let me go on holiday by myself. In fact(,) I took (A) few mates along with me. We decided to go the Gdynia city (TO GDYNIA lub TO THE CITY OF GDYNIA). I was over the moon because I had never seen (THE) sea before that trip.
We set off at 10 pm, and we turned up in Gdynia at 8 am (THE) next day, dirty and exhausted. We rented a bus (wynajeliscie autobus? - jesli tak, to OK, ale jesli pojechaliscie autobusem: WE GOT ON A BUS) which took us to the village situated near the sea. When we finally got there(,) we built a tent, and afterwards made a bonfire to warm our bodies (moze lepiej: TO WARM UP) because we had just finished swimming in the sea. During the eating (WE WERE HAVING SOME FOOD AND) chatting about places worth to see (WORTH SEEING) in Gdynia, when one of us came up with the stupidest idea ever. He conviced us to the idea of robbing the hotel's fridge (w wypadku gdyby bylo to nieprawidlowe, moge napisac conviced us to robe hotel's fridge? TA DRUGA OPCJA JEST LEPSZA, TYLKO: ROB THE HOTEL FRIDGE - chodzi Ci o lodowke w kuchni hotelowej, czy moze the hotel minibar - w pokoju?) ). We were aware that this is (WAS) breaking the law, and we may be captured (COULD HAVE BEEN CAUGHT), but we could not resist the temptation of getting something for free. Also(,) we were pretty sure(bez przecinka) that nobody will (WOULD) suspect us. Well, we were wrong, and we all ended up in (bez: the) jail waiting for our parents to take us home. That was the first night (bez przecinka) I spent behind bars.
Fortunately, everything finished with happy end, and sometimes when I start to resembling those moments I grin.