MV Captain Keith Tibbetts

This is the Caribbean's only readily divable Soviet warship: a Koni-class frigate built in 1984 at Nakhodka for the Cuban Navy, where she served simply as number 356. When post-Cold War Cuba could no longer afford her upkeep, the Cayman Islands government bought the frigate and scuttled her in September 1996 off the northwest shore of Cayman Brac (she is dived from Cayman Brac and on trips from neighboring Little Cayman), renaming her for Keith Tibbetts, a well-known Brac politician and businessman. She settled upright on sloping sand, but storms since, including Hurricane Ivan in 2004, have broken her amidships: the deeper bow section has twisted over to port while the stern, with its twin 76 mm gun turret still aimed down the sand, remains the photogenic, more intact half. Her gray steel now carries sponges and wire corals, and the contrast of Soviet gunnery against Cayman-clear water keeps her among the region's most distinctive artificial reefs.

她是如何沉没的: Deliberately scuttled as an artificial reef, 17 September 1996.

环境条件: Broken in two and slowly collapsing; guns, radar mounts and much of the stern remain recognizable

穿越式潜水: Limited. Some openings remain in the stern superstructure, but the hull is deteriorating and interior spaces are unstable. Most guides keep tours outside. 进入任何封闭式环境都需要专项培训：至少需要沉船潜水认证，完整穿越则需要技术级沉船培训。

建议持有证书: Advanced Open Water

水流: Mild · 能见度: 20–30 m

海洋生物: Goliath-size groupers are absent here, but Nassau grouper, horse-eye jacks, glassy sweepers in the stern, garden eels on the slope and hawksbill turtles are regulars.

危险因素: Sharp, unstable plating around the break; depth increases quickly down the sand slope toward the bow

Cayman marine-park rules apply: nothing may be removed