Agility

From Runescape - Wiki on Neoseeker

Agility is a members only skill that allows you to use short cuts, regain energy quicker and allows access to several locations. Players can train Agility at several courses and can also gain experience from short cuts, Quests, Genie Lamps, and Penguin Points. The most known requirement of Agility is the entrance to the Saradomin God Wars base, which requires 70. Agility can also be used to enter God Wars Dungeon should you not have 60 strength, however it is highly suggested you have at least 60 strength before entering the God Wars Dungeon.