Ngaire,
I loved the story of your experince in Siberia. For me, that is the reason to travel although I am not nearly as brave or adventuresome as you. Maybe you will wear off on me?
Although, I'm not going on ROAR (unless a financial miracle happens), I'm impressed that you continue your work while on a cruise. When the time comes, the ROARer's will go on their adventure with the confidence of knowing that you have personally checked things out! Outstanding!!