Three Oaks Recreation Area is closed as Crystal Lake police investigate a possible drowning. The site, 5517 Northwest Highway, was closed around 1:30 p.m. Tuesday as police interviewed witnesses and lifeguards and secured the area. Police say they were called around 12:51 p.m. to Three Oaks where a 5- to 7-year-old female juvenile was found unresponsive, face down in the water. The juvenile was removed from the water by witnesses and cardiopulmonary resuscitation (CPR) was immediately started by a witnesses and a Three Oaks lifeguard, according to police.