Oramond/Western Plains

Located just outside Rathleton, the Western Plains are a very good hunting place for those looking for a high experience per hour at the cost of a huge waste. Hunting here is specially good when the Quara Scouts raid is active, because it greatly increases the experience gained. This raid can start (and end) at any moment, but it's not announced. Because if happens quite often, it may be a good idea to start hunting here even without the raid as there is a good chance it will start at any moment. 
Since none of the creatures here drop any really valuable loot, the hunt strategy for mages and paladins here usually consists of completely ignoring loot to maximize the experience per hour. This allows you to constantly move into the spawn looking for more creatures and don't walk back to open corpses. 
This spawn can be reached from Rathleton by levitating down or by crossing the bridge from the Workshop Quarter to Lower Rathleton and then walking west.