great, crenelated cruisers, canvas-laden barks, and five-tiered barges, many showing signs of being equipped with levitation gear; elaborate houseboats, obviously fitted with their own farcasters; small, motile isles imported from the oceans of Maui-Covenant; sporty pre-Hegira speedboats and submersibles; an assortment of hand-carved nautical EMVs from Renaissance Vector; and a few contemporary go-everywhere yachts, their outlines hidden by the seamless reflective ovoid surfaces of containment fields.