The ruins of this old temple are not that spectacular.  However, a visit is definitely worthwhile.  The place is very well situated within the forest.  It was established in 1355-1385 by King Kuna as a meditation place for a famous monk.  The compound has a rare statue of the starving Buddha next to the Chedi.  There's also access to an open zoo in the back of the temple grounds.  The little lake west of the temple contains numerous catfish and turtles.

How to get there:  Located on Suthep Rd. almost the end, watch a sign on your left-hand side and turn left to Soi Wat U-Mong).