Bikes is a whole other story LOL. Unless your going to ride on the beach, or be at Hunting a long time, rust should't be a problem. We've been there a couple times, but skipped it the last trip south. I bought the bike bag to protect them while traveling. It is from Swagman. I had a few issues with it. First off it is made for the type of bike rack where the bikes hang on it. My rack is a custom made of the type where the bike wheels set on trays (Thule), so I had to cut a hole in the bag for the receiver. Slide rack tube through hole, then into receiver. The bag has a long zipper that runs from bike front wheel to rear wheel, and some straps to tighten the bag over the bikes. The zipper popped open one time, and one strap broke. We did a 4000 mile trip with this setup, and a couple holes rubbed through the bag where there was rough edges on the bikes, like on the rear rack and brake lever. I fully expected to be throwing the bag in a dumpster before the end of the trip, but it held up reasonably well and is still useable. It did accumulate some water in it because of my modification, the drain holes weren't positioned right. So as final appraisal I will say it did protect the bikes while traveling. Waxing your bike with an auto wax is a good idea prior to a trip. When we are set up on a campsite we use an ez-up type shelter with 3 sides as bike garage/ cook tent.