The Arava Rescue Unit of the Israel Police’s Southern District saved 70 stranded hikers Saturday, after a group of Israelis – including children, adults, and the elderly – became overly dehydrated during a trip to Nahal Peres in the northern Negev.

Medics at the scene treated five people for shock and dehydration, Walla! News reports; five were evacuated to Soroka Hospital in Be’er Sheva for further treatment by helicopter. 

The incident followed a record day for hiking in Israel.

150,000 Israelis visited national parks, beaches, and nature preserves Saturday, in the wake of a heat wave after days of winter weather.

The most popular spots: the Banias Nature Reserve, Ein Gedi, and Caesarea, Masada, Ashkelon and Beit Guvrin national parks.