Frankeriffic

My wife and I went on our first cruise with the kids in Nov 2021. We flew from the northeast to Ft Lauderdale and went on a Western Caribbean cruise aboard Allure of the Seas. We can’t wait for our next RC experience! We want to sail out of NJ but are concerned about sailing in the Atlantic and sea sickness. Colder sailing days is also a concern. I want to know if those are valid concerns vs the additional cost of flying to Florida.