Yes i am an old man. They have repaved the Rio Hondo/L.A. riverbed this last three weeks so i have been going over to SGRB from Firestone north to HWY 39 over Santa Fe Dam. It is a good work out, uphill then into the wind coming back. It has improved my endurance. They are redoing the lower half of the SGRB but have not done the worse part of the trail. I will get back on the L.A. trail this coming week to see if it is finished. Usually i go to Shore line Village or over to Seal Beach. Next on my list is to do 100 miles.