Verb conjugation of "beißen" in German

I arrived there but could not find a hotel immediately, so that I took my luggage with me. I know that this is very provocative to thiefs. One should not walk on the street with a big backpack.
Anyway, once we arrived at the guest house the rules were explained: Washing my Jeans would be 2 dollars, a pair of socks 1 dollar and so on. I did not feel comfortable with these people.
The young women rowed towards us and tried to sell food and souvenirs. We were not interested and she tried to block us and prevent us from swimming back to our vessel. So we dove beneath her.