Sustainable Cruise Initiatives for National Geographic Traveller UK

I don't dip my toes into the marine industry much these days, but I've been asked by National Geographic Traveller UK to write a piece about sustainable initiatives in the cruise industry. I don't mean reusable cups and single-use plastic bans (though this is of course brilliant) but real, inspiring, meaningful change. By cruise I mean small and sail-powered boats as well as the big and mighty ships. Any tip-offs gratefully received, it's a long read so lots of space to fill! ** Please email [email redacted] ** Thank you :) #cruise #environment #sustainability #travel #prrequest #journorequest