Unrest can take you through 34 if you want to before too much goes light blue.
Best spot in there for a cleric by far is the top floor spawn, with the Knight and two 6 min festering hag placeholders. It's a bit much to do solo (mainly for the knight himself who can be annoying), but duoing with a wiz or cleric or paladin or druid you can do a good job of stun locking and burning down hags for good experience at little to no risk.
With a partner you can do the basement easily as well.
The rough spot on this server is 35ish in the old world, where specs and hill/sand giants are a bit much, mistmoore is a bit green except all the way in, and solb and guk bottom are slight bit too much and require full groups.
This is the time where kunark comes into play, where no matter what level you are there is tons of places to find undead near your level. And a lot of mid-level groupings congregate to FM/WW/OT for 30-40, and Dreadlands near karnors + yeti caves are usually populated. City of Mist is a fantastic spot full of melee (since they can bind there) during peak hours and there's always Droga/Kaesora type spots for those with a group who wanna venture off the beaten path.
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Make some friends who play the same times, or, as a last resort, /w all 30 40 and see where people actually are.
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