“The lower and more central you are in a ship, the less roll and sway you will feel,” she explains.
Even passengers hoping for a balcony should steer clear of soaring heights if they hope to avoid seasickness.
“Aim for an outside cabin in the middle of the ship – the natural balance point,” continues Kerry.
“Having a window will also give you a consistent view of the horizon to help you maintain your equilibrium.”
Meanwhile, the worst offenders for sickness are cabins situated high up at the front and back of the vessel.
Though they offer sweeping views of the surrounding scenery, these cabins also tend to feel the impact of any rough waters.
For guests who find themselves in a cabin elsewhere on the ship, the good news is there are plenty of other methods to beat mal de mer.
Kerry has some additional handy tips up her sleeve that can quickly aid those feeling green around the gills.
“One of the most widely recommended remedies is a scopolamine patch that is applied behind the ear at least eight hours before you sail,” says Kerry.
The US-manufactured treatment can be purchased online for UK sailors and is said to be effective for up to three days.
There are also some natural remedies said to combat the ocean illness.
“Ginger is a very popular remedy, which studies have found can greatly alleviate nausea associated with motion sickness,” she says.
“The root can be taken as sweets, powder, tea and pills. Another favourite is eating green apples.
“And indeed, some ships even offer plates of green apples and crackers as part of their room service menus, to help people overcome any motion-induced nausea.”