50' Lagoon

High Rate: $ 21,500 weekly All Inclusive

Low Rate: $ 18,500 weekly All Inclusive







Cabin Configuration:

2 Queen + 1 Double cabins, each with private bathroom


  • Length:
  • Builder:
  • Built/Refit:
  • Beam:
  • Draft:
  • Regions Available:
  • Locations It Travels:

  • 50'
  • Lagoon
  • 2020
  • 26.7'
  • 4.7'
  • Caribbean
  • St. Thomas, USVI year round

Water Toys

  • Two Yamaha 500Li underwater sea scooters with 2hr battery life
  • Two SUP (paddleboards)
  • Full snorkel gear (fins
  • masks
  • snorkels)
  • Floating tubes
  • Noodles
  • GoPro and Drone to Capture vacation footage

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David and Lilian Harkness, American owner operators aboard this deluxe 50′ Lagoon catamaran, SEA IO,  worked in IT before retiring to the Virgin Islands.  So the yacht gets it name from ‘chief information technology officer,” only there’s a spin on the word ‘chief” into SEA, as in CEO, and the IO is pronounced I.O, as in CEO, only SEA I O.  After looking at many yachts, what David and Lilian like about SEA IO is the dining table in the deck house saloon, which moves away from the couch.  So if there is rain, guests can have a choice where to eat.  Purchasing her in 2020, this is David and Lilian’s third season in the Caribbean.  Both are certified captains, and when we inspected the yacht, Lilian gave each of us one of her homemade, edible chocolate spoons, a glimpse into her charter galley….

This beautiful 2020 50′ Lagoon sailing catamaran offers two large queen berths each with private ensuite baths including electric heads, vanity and separate showers. The third cabin is a double midship berth that shares a head. The queen cabins and yacht both offer wonderful natural lighting and great ventilation plus full air-conditioning, depending on guests’ desires. The salon will seat up to six guests in comfort for lounging or dining plus with numerous lounging areas, There is plenty of space for gathering as a group or finding a private place for one or two to relax. The aft exterior offers alfresco dining for up to six guests along with spacious top deck seating and lounge area in front of the helm, plus a forward lower deck lounge area behind the trampolines.

Suitable for up to 4-6 guests (see layout). 5th and 6th guests must be comfortable sharing a head with another guest cabin. This yacht is great for 4 pax or 6 pax families. Would also work for 3 couples if the 5th and 6th guests are comfortable sharing a head with another guest cabin.  The midship double cabin is not suitable for 2 adults, only 1 adult or 2 children.


  • Weekly all inclusive Rates 2023
  • $21,500 for 6 guests
  • $20,000 for 4 guests
  • $18,500 for 2 guests
  • Gratuity not included;  Sails from St. Thomas, USVI year round

This vessel is legal to conduct charters in the BVI

Minimum charter length: 5 nights
For 6 nights, divide by 7N X 6N. For less than 6 nights, divide by 6N X number of nights.

HALF BOARD MEAL PLAN OPTION : SUBTRACT $150 per person from weekly rate : Includes 7 breakfasts, 4 lunches and 3 dinners. Requires all other meals on shore at client expense. 2@$18,200 3@$18,800 4@$19,400 5@$20,000 6@$20,600

LOCAL FARE MEAL PLAN OPTION : SUBTRACT $75 per person from weekly rate : Includes 7 breakfasts, 5 lunches and 6 dinners. Requires 2 lunches and 1 dinner at client expense. 2@$18,350 3@$19,025 4@$19,700 5@$20,375 6@$21,050.

Christmas & New Year, 7 night minimum, Flat rate 2-6 guests, Full-board only:
Christmas 2023: $28,500 Must start 12/27 or later.
New Year’s 2023: $29,000; Must start 12/28 or later.

Embarkation 12 noon / Disembarkation 12 noon