Microwave links? How about an oil derrick style thing mounted directly to the seabed so it doesn't move? There's also plenty of coastline away from major citi

Microwave links? How about an oil derrick style thing mounted directly to the seabed so it doesn't move? There's also plenty of coastline away from major cities. Find enough open space and it becomes feasibly multi-tenant. Add wind/solar and run a cable (or 3).