Yosemite waterfalls reach their thundering peak. One of my personal favorites is Horsetail Fall along the east buttress of El Capitan. This is a remarkable place to see the alpenglow of sunset. Lunar rainbow may be visible at base of Lower Yosemite Fall. Golden Eagles may be sighted soaring above Yosemite Valley cliffs.
Bracken fern is tall and abundant along meadow edges and throughout forests.
The stalks were a favorite material of Yosemite Indians for basket manufacture. You can see some of these amazingly intricate baskets at the Yosemite Museum in the Valley. Mid June Black bears begin to mate. It's hard to say. The spring run-off is amazing.