HAS ANYONE TRIED THE Zipline Haleakala Crater with Skyline Eco Adventures ON MAUI? IS IT AS FUN AS IT LOOKS? HAS ANYONE DONE THE DAHANA RANCH HORSEBACK RIDING ON THE BIG ISLAND? HOW WAS IT? WE HAVE NEVER BEEN HORSEBACK RIDING BEFORE. HOW ABOUT THE KONA VILLAGE RESORT LUAU ON THE BIG ISLAND? HOW FAR IN ADVANCE SHOULD WE BOOK THESE?