As always, Hernanu has nailed the good advice.
From my own experience, I went back to our home in Hawaii at around six weeks and started a remodeling project (with lots of help), and based on that and my surgeons advice, here are some thoughts:
Many of the hiking trails in the rain forest go over slippery rocks, so I would avoid those. I would also plan on avoiding swimming in any of the nice pools at the base of the numerous waterfalls, since these always involve going in over jagged slippery rocks. There are many nice flat prepared trails if you seek them out, most going through gorgeous scenery. Walking on the beach is great exercise, especially in soft sand which will wear you out fairly quickly. I am normally involved in ocean surf and wind sports all day, but my surgeon would not allow any of those. Swimming and snorkeling are great, as long as you are going in along a nice sandy beach with no surf; definitely no rocky entries. Scenic drives are fine, as long as you get out often to walk around and enjoy the scenery, which will be more fun anyway. One last thought, if you have any open cuts or wounds, stay away from the ocean, and be careful even around the beaches. Staph is very common in the ocean, and even in the sand along the shore, and any open wounds exposed to that environment often get infected. You are too early in your healing to risk an infection.
If you don't mind your trip being slightly toned down, I would go for it.