GET OUT THERE.
… June 5 and 6, more than 100 parks will throw open their gates and waive the entrance fee to all guests.
The complete list of parks that will be free next weekend can be found by clicking here …
Kraig Becker – Gadling – All U.S. national parks free next weekend
besthike.com 
This is a deal too good to pass up for a fun and free weekend with the family.
Just rediscovered your blog. Very cool. I have been looking at Iphones as well.
Daniel