Think our national parks are only good for hiking and scenic drives? Think again, says our national parks columnist.

Michael Kelsey climbs down a narrow crack in Squeeze Fork of Blue John Canyon. ... As abruptly as the Black Hole had constricted, it opens up. Swimming gives way to a slog through sugary sand in ...

Shallow swimming holes and woodsy Murrieta Canyon are the attractions of this short jaunt on the outskirts of Ojai. ... By JOHN McKINNEY . Sept. 8, 2002 12 AM PT .