Simple categories matching oceangoing:

• craft,
• fish,
• ship,
• bird,
• vessel,

Members with property oceangoing:

• bulk_carrier,
• shearwater,
• albacore_tuna,
• swordfish,
• tanker,
• tern,
• tuna,
• military_ship,
• dolphin,
• ship,
• shark,
• submarine,
• containership,
• freighter,
• albatross,
• phalarope,
• life_boat,
• ore_carrier,
• sailfish,
• spacious_bath,
• jaeger,
• bunk_carrier,