Philadelphia dreams

In my Dream i was in Philadelphia with my family my mom, sister, my aunt and her 3 children but she don't even travel she live in Dominican Republic, i was asking her why we didn't go out if we went to Philadelphia to have fun. In front of the apartment were we was the beach was in front of us it was like the ocean. then when i open the door were we can see the ocean a tsunami was coming and i don't know how to swim and i was praying oh my lord, then my sister get frustrated she through her self thought the water because she knows how to swim my i get in top of the door because i was scared my mom was crying when my sister through her self wit the water and i run crying looking for my sister.