Any good place for a party of level 64 to earn experience in Aht Urhgan?

Thank-you to Cyclonus for hosting a Saturday Aht Urhgan Assault! I had a lot of fun. We did the Cleansing one (worms) at the Azouph Staging Point.

Our Assault ??? Treasure drop (there are unknown treasure drops in Aht Urhgan) turned out to be a BRASS RING! LOL!

Cyclonus was saying he would host a new one this coming Saturday at the Halvung Staging Ground. I acquired that staging point by walking to it and using Sneak Oils and Prism Powder (there are Bombs at the end who detect magic). I used printed-out maps (no in-game maps for me for most of the journey).