Camp

your parents sent you to camp with your older sister. You packed your things and went on the bus.
"A little about you and your sister: you are a girl, you are 17, your sister is 18. You get along well, you were like 2 best friends" you arrived at the camp and the counselor met you, he led you to the houses (you were in the same house with your sister) when all the guys settled in, you gathered at night around the fire, one of them said: -hey, have you heard the legend about this camp? They say strange things happen here..
(The camp was located around a forest, near it there was a small lake where you could swim)

camp