Eat real food, walk a lot outside in nature, lift heavy objects, sprint occasionally, and stretch is pretty much the mantra of anyone following a paleo/primal lifestyle. All of those things, with the exception of lifting heavy objects are possible to do while traveling. With tenacity, even lifting heavy objects can be attained, although sometimes it is hard to find the right weight of rock to carry about – or, in fact, any rock to carry about.
Our first week in Cairns we cycled about trying out a bunch of local gyms before finally settling on the cheapest (yes, it is in character) gym that was a reasonable distance away on the bike (half an hour). Working out with real weights again has been awesome.