If you havent seen the epic battle going on in Silent Redemption Village 1 on the Cazic Thule Server you are missing out.
Come take a look. Hopefully it will be worth your time.
Its easy to navigate in the housing zone. If you zone in from the guild lobby, use the spring off the the right to sling shot to Maedhros' house. Check out the battle.
To enter the caverns below the castle, find the statue of Firiona Vie within the keep. She is holding the Paladin epic that was thrust through a stump. Right click the stump and select enter.
Make sure to check out the treasure/art exhibit room behind the waterfall on the ground floor of the caverns.
Castle Maedhros
Caverns
Golemzilla
Castle Maedhros under attack