I was running Firelands because I wanted the Balespider’s Burning Vestments, but the hand wraps and leggings are in Baridan Hold which is in Tol Barad but the world cuts off in both areas that I went to. So how do I run Baridan Hold?
There is a portal in Orgrimmar near the other Cataclysm portals.
However, you should be aware that all of the Balespider drops can be found in Firelands or on the Cataclysm vendor at the top of Grommash Hold. You don’t actually ever need to do Baradin Hold to finish the transmog set.
The Normal Hands and Legs are bought for gold at the vendor. If you want heroic or mythic, the token drops are from Baleroc (hand) and Shannox (leg). What you’re looking for is the Gauntlets of the Fiery Conqueror Token and the Leggings of the Fiery Conqueror Token.
If you’d prefer rolling the dice on the massive loot tables on Occuthar, again, the portal to Tol Barad is on the ledge near the Cataclysm portals.