OK, but I don't see how the CDC guidelines can be observed or be effective on a liveaboard when you are living for several days in an enclosed volume of air with strangers. Screening guests can't be 100% effective for a number of reasons (recent exposure not showing up on tests, potential false negatives, etc.). If someone aboard were to become ill while you are at sea, or worse yet, become an asymptomatic carrier, what would you do?
But full disclosure: I freely admit that I have never been on a liveaboard, although in these days and times I am certain not to any time soon.
I guess you don’t read my report. For social distancing in the LOB dining room, here is their rule:
The meal (breakfast, lunch & dinner) were served by the hosts during this pandemic situation, no buffet. The dining room would be kept into maximum of 14 divers at a time. For example, Shark 1 and Mantas would dine first and after 30 minutes, they were asked to vacate the dining room to let Shark 2 to have their turn to dine. On the next day, Shark 2 would dine first. Shark 1 and Mantas would dine after Shark 2 left the dining room. This alternating order of meal time was conducted for the 8 days we were on the boat.
Everyone’s body temperatures (including the crew’s) were daily measured, logged and reviewed by Captain Shep.
They have sanitizer bottles mounted / placed every where.
Everyone wore mask when they were outside of their cabins, except during mealtime, where we were spread over the huge dining area.
Before boarding the boat, we were required to go through a medical check in interview three hours before boarding the boat. That includes submitting a negative PCR test within 7 days of boarding and a log sheet of our body temperatures, measured twice a day for 7 days prior to boarding the boat. A medical professional would review the document, measured your body temperature, blood pressure and interview you for any medical conditions that would indicate of any symptoms of COVID-19 exposure (fever or chills, coughing, shortness of breath or difficulty breathing, fatigue, muscle or body aches, headache, new loss of taste or smell, sore throat, congestion or runny nose, nausea or vomiting, diarrhea, persistent pain or pressure in the chest, new confusion, inability to wake or stay awake, bluish lips or face). Then everyone was thoroughly sprayed with disinfectant, before stepping on the boat.
After passing the checkin interview and everyone having no symptoms of COVID-19 exposure in the boat for a week, I felt like we were in a COVID-19 free bubble, like at home. Disembarking the boat felt like we were back in the virus invested environment in the port. Even worse when I was back in Houston airport, facing those mask deniers with useless bandana on their chin.