MV Sea Sub I carrying out crew change to domestic and foreign vessels visiting Port Tampa & Port Manatee , inside and outside anchorages, up to 200 miles offshore in the Gulf of Mexico. A quick 45 minutes from our dock to Egmont Channel, our vessels are available 24/7. Our crews are professionally trained and experienced to safely transport personnel from or to shore side. MV Sea Sub I & MV Sea Sub II are rugged, fast and stout for the weather here in the Tampa Bay area. Our captains know the area waters well. Our vessels can operate up to 200 miles offshore in the Gulf of Mexico.