head for the hills

verb2

1. •
   To travel to a higher elevation, especially to a rural region on vacation.

   • Modern campers look for comfort first when they head for the hills. — 2006
2. •
   To go to a safe place; to seek refuge; to flee.

   • Goldman Sachs warned that we are ‘only at the start of a steep downturn’ and advised investors to head for the hills. — 2008