I feel a few things are responsible.
Economic growth that could create more middle class with disposable incomes for holidaying is not as fast as desirable.The location of TINAPA is too far from the epicenter and would have probably made a better investments if it were to be seen as an investment of the future. Then, the culture of going on summer holiday abroad is so pervasive that i know that even the governor of that state will probably travel to London in summer, Nigerians hardly value what they have and the consumer behaviour has an exortic taste which is very bad for our economy.

I feel TINAPA is close to Porthacourt and Akwa Ibom but you can also see that the population of people around there will probably want to travel to Seychelles, Bahamas and the rest. One way the place can be functional is through collaboration with other states in assets ownership and profit sharing whereby the government of that state will put say 60% of it for sale to interested states and investors so as to get say Lagos state government to take its conferences there and by so doing little by little it can begin to come alive again. I think I heard an expert once said on a popular television that TINAPA was ill timed but was a good project just that it came before its time.