Translation of verge in Spanish

Thanks a lot. Today and tomorrow are holidays in Switzerland, but I'll do it Tuesday first thing in the morning...please have a look at it and confirm. Where do you want me to place a reference?
Seldom only do such incidents occur, thank God, but the fact is that these incidents, which are started by a relatively small group, need to have a broader support among others in order to exist.
We returned before dusk, as we were afraid of not finding our ship in the dark. Once on the ship we decided to go for night swimming again in the open ocean. A few women on little boats approached us.