I think that stuff is run by DNC, you could try calling them:
This is listed on the website as "Activites Information" phone number
Activities Information (209) 372-1220
http://www.yosemitepark.com/AboutUs_ContactUs.aspxHere's information about rafting in the Valley (you probably already know this, but in case someone else wants to know)
http://www.nps.gov/yose/planyourvisit/water.htm"Rafting
Rafting along the Merced River is popular during summer. You can rent a raft (typically in June and July, but it varies from year to year, depending on water level) or bring your own. (Other nonmotorized vessels, such as kayaks, are also permitted.)
Rafting is permitted on the Merced River between Stoneman Bridge (near Curry Village) and Sentinel Beach Picnic Area between 10 am and 6 pm. Rafting is not permitted whenever the river stage (depth) reads 6.5 feet or higher and the sum of air temperature and water temperature is less than 100°F. You must have a personal flotation device immediately available for each occupant of the raft.
Rafting is also permitted on the South Fork of the Merced River in the Wawona area.
Some visitors enjoy kayaking the calm waters of Tenaya Lake."
Post Edited (05-10-07 13:05)