I love cruising, and in my opinion it is the safest way to travel when you have heart disease. I have been on 3 cruises since my device was inserted, one of them was a month after I finished chemo and had the device. I think of myself as safer than everyone else on the boat, unless they have an ICD. When you book into ports, just let the staff know that you have an ICD and they will pat you down. Pick activities on shore that you know you can handle. Take all your meds in original packaging and make sure you have enough for the duration. Check with your doc before you go to find out what you can take on the off chance you get seasick. Eat well, always plenty of variety on the ships so go for it. Don't overdo the cocktails, but if you must, ENJOY.
The beauty of a cruise is that you can do literally almost what you want, get up when you want, eat when you want or just laze around all day if you want. No pressure, complete relaxation and staff to look after you 24/7.
I am planning one for next year during our winter, (I am in Australia) and enjoying looking at where I can go. But unlike you, I will do the Pacific Islands, just have to decide how long I want to go.
There is also medical facilities on board, I don't know how your system over there works, but I would only get travel insurance for accidental stuff. Honestly you are extremely safe with your device. If it fires whilst away, so what, you will still be alive to shake it off and get back to the relaxation and enjoyment of it all. After all, that is what our devices are for, to keep us safe and fix us when something goes wrong.
“I am not what happened to me, I am what I choose to become.” Carl Jung
Diagnosed with cardiomyopathy in 10/99
LBBB & VT diagnosed Feb 06
Guidant Biventricular Pacer ICD inserted Feb 06: Boston Scientific Incepta CRT-D inserted May, 2012
Oesophageal Cancer, 2012, Gall Bladder & Septicemia 2014 resulting in VFib and severe heart damage
Bare Metal Stent May, 2012 Mitral Valve replaced 2015
Meds: Entresto, Bicard, Coralan, Eurtorxsiq, Frusehexl, Spiractin, Sigmaxin, Creon, Warfarin,
Appropriate Shocks for Ventricular VFib.