There's literally nothing there. The energy wave vaporises matter, so nothing can survive.
Also, to get into the crater, you'd need to climb down a 30-40+ metre sheer cliff, then walk the remaining distance to Santorini to reach the centre. Even if you had climbing gear to get down in the first place, you'd run out of resources long before you got there. I'll tweak the wording of the logs to make that more clear in vNext.