I was in a large/tall church-like building with a bunch of people (mostly girls) from my high school. I knew they were from my school but I didn't recognize them individually. We were on a choir trip somewhere. We had been in this building for a little while when a really odd wind-like sound that grew increasingly louder. After I asked what it was, a woman who worked at the church shined a flashlight out a window and informed us that bats were coming and that they would be coming through the walls. I told everyone to get down on the floor and cover their heads.
I got up to make sure that everyone was accounted for, and I noticed that one girl was down a hallway smiling at me. I told her to get over with the rest of the group and we all got down on the ground. I covered her with my arm. The bats passed through overhead and nothing much really came of it. We all got up and left the building. It was daylight outside and we were running along a beach in order to cross the border into another country so that whoever sent the bats after us couldn't get to us. We passed through the lobby of a Caribbean-type, shabby, shack/grass hut-like hotel in order to keep going down the coast (which continued on the other side of the hotel). While we were in the lobby, I noticed a boomerang-shaped knife that was mounted on the wall for decoration. Since we had to leave all our belongings back in the church and we needed things to survive, I decided to jump up and grab the knife off the wall.
When we got out to the coast, I noticed that the shore had a mashed potato-like consistency and was full of craters. A yellow fish was trapped in a water-filled crater on the shore. Because we would be needing food soon, I decided to kill the fish by taking a swing at it with my knife. One of the girls in our group got mad at me for doing so and told me not to. This is all I can remember.