Frank, back up plan #1 should be Parson's Landing on the front side. Instead of crossing the penninsula, you just load em up and paddle to the left a few miles. (the site says 7 miles, but Google Earth shows 4.75, the same as Little Harbor)The only thing it does not have that Little Harbor has is running water. Two Harbors it self may be an option if there is anything available.
I have always wanted to camp here.
http://www.visitcatalinaisland.com/t...onsLanding.php