It parallels the Sprinter line and runs from the Escondido transit center just past Palomar College. You can see parts of it driving along Mission. It's around 6.5 miles, paved and not crowded at all. It's *supposed* to eventually run all the way to Oceanside but I'm not sure when that's going to happen. The route I described earlier was one of the first ones I brought my wife on when she was getting into cycling - a couple rolling hills but mostly flat and you can take a couple detours along the way to make it more difficult if you want. The best thing is there are nice bike lanes and the speed limit along Country Club Lane is only 25 mph.

I wrote a blog on the rail trail last month here: http://mjonesblog.com/?p=387