Given a travel related situation, and given a specific question about the situation, summarize the question into a title

[Q]: I am a US Permanent Resident(Green Card). I booked a ticket from China to USA. The flight is operated by Air Canada. It will have connecting flight wait time 11 hours 20 minutes in Vancouver.
My question is that since the connecting flight wait time is so long, can I take a tour in Vancouver, I don't want to sit inside the airport, Is that possible?

[A]: Connecting flight wait time 11 hours 20 minutes - is it possible to exit to see Vancouver?

[Q]: I'm a US citizen and I hold a Washington state Enhanced Driver's License. I'm living in Vancouver for a bit.

Can I fly domestically without my passport? Micheal Seifert's answer indicates my license will work for the airline, but what about security?

The web says government-issued ID is acceptable for domestic travel, but that obviously presumes Canadian government.

I get a normal US driver's license probably wouldn't work, but surely if it's good enough for CBS, it's good enough to fly?

[A]: Can I fly within Canada with a US EDL?

[Q]: I want to go to Costa Rica and I am considering going to Panama and Nicaragua as well. I wonder though, what will I be able to find in Panama and Nicaragua that I will not be able to find in Costa Rica? It get the impression that the landscape, the wildlife and things to do (surfing, ziplining, snorkling) are all very similar in these countries.

I would really love to see the wildlife as well as surf a little bit. I am not too interested in the culture, it is mostly nature that I am interested in. Wildlife, scubadiving, all these things interest me. Are these things significantly different in all these countries or is it mostly a price difference that occurs?

I find it preferable to have access to wifi, as I am a traveling developer. I don't mind staying in hostels but I prefer not to stay in party hostels. Would love to meet people but I prefer to rest as well.

[A]:
Panama, Costa Rica, Nicaragua