DW and I did the Segway tour. As a Trekkie, I loved it; she could take it or leave it. One problem with a group tour like this is that its progress depends on the skill level of its least-accomplished member. So if you have a group of Segway prodigies, you'll be scooting along like nobody's business. But if you have just one person who can't seem to understand what the phrase "lean forward" means, you'll find yourself chomping at the bit to get going.