http://java.com/en/download/help/uninstall_java.xml. If you have a problem reinstall Java16 use the Offline Installation from here. http://java.com/en/download/help/error_1722.xml. With Java16 totally gone and after a reboot Java15 should install.
The Red Cedar Bike Trail. This trail shadows the steep walls of the Red Cedar Valley for 14.5 miles from Menomonie to its connection with the Chippewa River State Trail. Along its route, the Red Cedar trail passes through the communities of Irvington and Downsville and the Dunnville State Wildlife Area.
The round trip hike is 10 miles (16 km) but we will spend significant time at the bottom and at Phantom Ranch, exploring the area - Colorado River, Bright Angel Creek and the canteen at Phantom Ranch. The change in elevation from Indian Garden to the river is 1,400 ft (427 m).