We arrive in Yosemite on April 7th where we have planned to stay for 4 nights (3 whole days).I understand that at this time of year much of the park is inaccessible owing to snow. But I also have heard that ski-ing/snowboarding will be over. We had hoped to hire bikes or kayak but now hear that these activities may not yet have started! My question is this: are we better off reducing our stay to 2 whole days in the park and spending an extra day in San Franciso (we already have 2 whole days there). Any advice would be very much appreciated.