You can open your eyes in the ocean, and surprisingly the salt water doesn’t sting, but its very blurry underwater without wearing a mask. But what can happen if you open your eyes in the ocean with sand sediment, the sand can get in your eyes and this can hurt.
Sharks prefer fish blood vs human blood and they are nearly 17 times more likely to be attracted to fish blood vs mammal blood, which in the experiment was cow blood. But the blood of mammals is very similar across all mammal species, which means that cow blood is similar to human blood.
Sand found in the tropics is estimated to contain up to 85% fish poop from parrotfish. Parrotfish eat coral by scrapping it away and inevitably bite off much of the limestone coral skeleton too, as they eat the living coral. It is this limestone that passes through their gut and pooped out as sand.
This MY Odyssey Liveaboard review reveals a 40 metre (131 feet) Red Sea diving safari boat for up to 26 scuba divers. With free Nitrox onboard to extend your dive times. Meals cater for all dietary requirements. 13 ensuite aircon cabins for couples and singles.
A Red Sea luxury liveaboard should include good diving facilities, comfortable cabins with aircon and ensuites, plus good food and drink. Diving from a liveaboard is also about other luxuries like onboard entertainment and comfort, plus the addition of non-diving activities to do in-between dives.