We are an adventure backpacking company so we always recommend backpacks! Suitcases can be big, bulky, and the wheels won’t work very well when you're hopping off a longtail boat and trying to roll them along a beautiful sandy beach!
Backpacks are compact, rugged and are easy to just throw on your back and go. Sizes of backpacks can vary but whether you are traveling for 10 days or 110 days, you’ll get by just fine with something 60L or bigger. You just need enough room for 1 week's worth of clothes and whatever special souvenirs you pick up along the way. Again, it’s totally up to you what you bring your necessities in, but you will for sure find it more convenient to pack it all in a backpack - Pack it, Strap it and Back it!