Translation of genial in Spanish

When I don't study I go for swimming in the pool or make some sports with my friends, such s Tennis, soccer...Why do you like to learn Spanish? Do you want to make a trip to Honduras or to Nicaragua?
We were not the only tourists, there were a many boats sailing on the same route. At one point the driver stopped the boat and immediately children of the village people approached us.
My sister just moved to Boston, Massachusetts and I visited her for two days only. This means that I do not know the city but what i saw of it was really nice. I will visit her next month or so.