There are thousands of opportunities for bird watching in Mexico. Here in the Yucatan we have many species of birds that are native to this area, and we have professional guides who work out of Celestún, Yucatan (a small town on the beach about 90 minutes west of Merida, by car) that guide throughout Latin America.
Hiking is starting to get popular here in Nicaragua, even though it is not yet very popular. You would see more foreigners go hiking and camping than local Nicaraguans. 
I have been living in the Lisbon area countryside since 1983, the first ten years as a single woman living alone, and up to now have never felt unsafe. What exists in this area is mostly petty crimes of opportunity, eg. bags or cameras left in a parked car, or houses obviously unoccupied. 
Snorkeling, diving, and scuba are all available in Belize. The best snorkeling is around Caye Caulker and Ambergris Caye. We have the Caye Caulker Marine Reserve, and the Hol Chan Marine Reserve and Shark Ray Alley. These three are excellent area for snorkelers and scuba divers. These are located in the Barrier Reef, which is the second largest Barrier Reef in the world.
Lifestyle and medical care might tie for third. If you live to snorkel or scuba dive, then you might want to live near a barrier reef in Australia or Belize. If you want hiking, back-packing and related outdoor adventures, then Ecuador, Argentina or Chile might be good possibilities. Ongoing medical issues could cause you stay within in direct-flight distances to Miami, Florida or Houston, Texas. Surprising to some, Costa Rica and Panama have excellent medical facilities and often allow for homeopathic remedies (prohibited in the United States) for cancer and age related maladies.Comparing Life in the US with Life in Mexico After Living in Mexico for Two Years
They were big, open questions— the “elephant in the room,” the large, unavoidable thing I was a bit afraid to confront honestly and directly. The background is that I was born and raised in the US, where I spent almost all of my 59 years before, two years ago, moving to Mexico. The elephant was these series of questions: After these two years, how would I respond upon returning to the US to visit and retrieve our household goods to...
A fine mist began to fall in