Here's a few handy hints to help motion sickness: Ginger is known to contain properties to alleviate nausea. It is available in a number of different forms - from tablets, powder and capsules, which are sold at pharmacies and supermarkets. These need to be taken before your trip, sometimes a few hours before travelling. Other recommendations to reduce motion sickness include not travelling on an empty stomach, as gastric juices can promote nausea. Whilst on the ferry, if possible, sit outside on the back deck to breathe fresh air. Look out to the horizon, rather than looking at the boat's movement in the water.