1 Neutering will make your cat or kitten less aggressive. 2  Neutering will reduce your cat's 'roaming' behavior (your cat will be less likely to runs off to find a mate).  Neutering will decrease the likelyhood of his getting into fights with other cats (and getting injured as a result).
Visas. A tourist card costing $5 is added to the ticket fee for those traveling to Panama. This visa allows visitors to stay in the country for a period of 180 days.
I don't know anything about boat service between the two, so the only suggestion I have is to look for deals on flights, which occur surprisingly frequently in Latin American countries. You can also drive or bus or boat to Panama from Costa Rica and fly from Panama to Colombia. If you don't care about safety, I've heard it's possible to hire Colombian guides and hike across the mountains separating Panama and Colombia.