Rat Pac Trail is a 4-mile downhill fast, swoopy trail with exciting gravity drops, jumps, a gravity bowl, various skinnies, ladders, and a few pucker-inducing features, including the infamous Rock - an elevated ladder-to-boulder with severe consequence. The trail has hard and easy lines and is well marked, there are structure options for more advanced riders. The trail is accessed from Roslyn/Cle Elum using a logging road climb (or longer options with mostly singletrack) leading to great views from slickrock on the top of Roslyn Ridge into the Teanaway valley.
This trail is only 90 minutes from Seattle and local lodging is cheap. It's worth spending a weekend in Cle Elum or Roslyn to ride this trail.
Dry and packed, well-drained.