Raids are at the portal at north of home. They take a few people to do, you or someone else that has completed the Prove Your Worth quest must get a raid book and start a party and invite everyone else. When everyone is ready the leader goes in the portal and everyone follows. Raids are typically for range or mage so be sure to have the correct levels. While in the raid your prayer is drained so you need to bring a few super restores along with at least sharks for food. There are 4 rooms to a raid and the players in the party must clear every monster and defeat the boss at the end of each room. Upon completion of the fourth room players are awarded a raid key to use on the raid chest.