Here is a hard drive designed to survive harsh conditions. The ADATA HD830 Ruggedized Hard Drive is IP68 rated. It has a USB 3.1 interface and up to 5TB capacity. This external hard drive is drop tested from 1.22m. It can survive 2m of water for 120 minutes. It also has 3000kg pressure resistance.
The ADATA HD830 is designed to be virtually indestructible. It has an aluminum exterior and shock sensor technology. You can find out more about it here.