Coming in July on carnival cruise with dh and our 3 dk's (9 mnths, 2.5, and 5 yrs). We are bringing our double stroller (narrow- not wide) and a chest carrier. How easily can we navigate the sidewalks and stores with the stroller? I'd rather carry the baby and let the others walk but their little legs get tired so quickly that might not be an option. Is there anything the kids might really enjoy in town? And lastly, is there a nice green area where the kids can blow of steam or we could enjoy a scenic walk w /or w /out the stroller? Thanks so much!