To continue on the travelling subject still, here is an excellent piece on tourism and poaching. Long, but worth the read!
I get more and more reluctant to go to any zoos or aquariums, especially after hearing this summer that it is normal that they kill animals to make space for others (link in Swedish). Additionally, it seems that zoos are not significantly contributing to saving any species, and if they do, they save the species that are important for them to attract customers and no other ones (another link in Swedish with more arguments against keeping animals in zoos).
When we were in Valencia though we did go to the marine park Oceanografic and as far as I could see it is good park for seeing and learning about oceans. It doesn't stop me from feeling a bit bad though especially about the dolphins and even more about the beluga; the beluga was a sad view swimming around in circles all alone. When I came home I also got reminded (link in Finnish) about that the dolphins in marine parks might be from Taji in Japan.
This is how I'd like to see dolphins:
Although with the current extinction rate we might not see much animals at all in the wild in some years...
On a positive note the marine park had done efforts to inform the visitors about climate change, endangered species and pollution.