It has been long overdue, but I have finally updated my Los Penasquitos page to reflect the current configuration of trails in the area.
Yes, it does include the Tunnels area. More from a trail inventory perspective than a go ride it endorsement. Although, if those trails were legal I would highly endorse them. But it is not legal to ride those single tracks to I won’t endorse riding those really awesome trails.
I also included the miles of mostly shaded single track along Penasquitos Creek. These are trails that provide a quality outdoor experience that are also off-limits to bikes. While the best stuff out at Penasquitos is off limits to bikes, there is still plenty of miles of dirt to get yourself in a good workout here. You can read more about it on the updated page.