Of course the debate will continue for ever, and we dont want to start a heated discussion here.  But in an obvious way it can be said that wild animals belong in the wild and should not be made a spectacle of in a zoo or aquarium.

It is a fact that dolphins and other sea mammals in captivity usually have a high mortality rate due to physical and emotional depression and lack of care.

Thailand's record on animal husbandry is abysmal. Money wins over welfare and scientific conservation every time

Visitors of Dolphins show say:

"I've been to the "Temple of Truth" - Pattaya a couple of times and the dolphins are a rather shabby affair."
or
"...it is at Laem Sing, ChanthaBuri Province. Its website claims visitors, for a price, can swim with dolphins, however it doesn't get too many mentions on travel fora and one I have seen mentions the poor quality of the water."

Did you know? With every visit of a Dolphin-show one of the most cruel slaughtering in this world is supported. In the annual slaughtering of Dolphins in Taiji, Japan, they capture some of the dolphins to sell them to Dolphinshows round the world.

In a drive fishery they urge the dolphins to a bay where they are stabbed. Waters become red, in wild panic pregnant dolphins loose their calve.

See Ric O’Barrys award winning movbie “The Cove”. He was the dolphin trainer for the 1960s “Flipper” TV series and became an opponent of keeping Dolphins in suspect conditions. Due to the fact that almost all Doplphins in Shows are catched from the wild (often in Taiji/Japan) everyone should oppose any trial to visit a dolphinshow in captivity.

Dont support this just because you want to see a Dophin now. Instead of this try to find out a spot where to meet them in the see, where they belong too.