JACKSON, Wyo. \u2014 Authorities in Grand Teton National Park continue to experience a busy summer with visitation and related rescue operations. On July 25, rangers transported a visitor with a head injury out of Garnet Canyon to Lupine Meadows via helicopter, and then by ambulance to St. John\u2019s. The incident occurred around 5:48 p.m. Just hours later, rangers short-hauled a visitor with a leg injury from a fall in a boulder field near Delta Lake to Lupine Meadows via helicopter, and then on to St. John\u2019s Health by ambulance. Another demanding day began at 11:36 a.m. on July 27 when park rangers transported a visitor experiencing cardiac symptoms from Garnet Canyon to Lupine Meadows via helicopter, and then by ambulance to St. John\u2019s. Hours later, at approximately 2:08 p.m., two kayakers flipped their boats and stranded themselves on a gravel bar in the middle of the Snake River near the Mr. Bubbles area. Rangers had to escort them to safety. Finally, a visitor took a tumble along the Jenny Lake shoreline at 6:38 p.m. Rangers extracted that person from the Jenny Lake overlook and on to St. John\u2019s Health. Additionally, rangers report an alarming number of wildlife vehicle collisions involving large mammals. Nine animals have been killed in vehicle-wildlife incidents in the past two weeks including elk, mule deer, black bear, and pronghorn. Visitors are asked to watch for animals on the road, especially in the evening and morning. Campers should also note that park campgrounds are filling very early every day and there are few options for campers who show up late in the day.\u00a0As a reminder, are illegal outside of designated campsites as is the creation of new fire rings within Grand Teton National Park.