two excursions in st kitts

I need some advice please :). I would like to book Carnivals Dolphin push pull and swim and a Thurston Grey tour on the same day that I'm in St Kitts on the Carnival Fascination from 8-5. Do you think this is possible???

Thanks in advance:)

You should be able to do this, you have plenty of time on the island. I would do the dolphin excursion first, then have Thenford pick you up for your tour with him.