Ocean Vault Airport (BATV) sits on a reclaimed concrete pad hiding a sea‑cooled “edge vault” for a giant cloud company. The hyperscaler couldn’t fit a proper runway inside the project circle on land, so they poured money into the bay instead—building a short TBM‑length strip on the data‑center roof. On short final, pilots pass low over waves and a line of local picketers on the seawall, waving signs about lost beaches and noisy jets. Some call Ocean Vault a brilliant fusion of aviation and infrastructure; others see it as a meme‑worthy monument to overreach. Mission briefs remind pilots that if the protest ever spills onto the runway, the only correct move is a go‑around and a quiet diversion.