Day 4 - We Raced To Circumnavigate the Globe in 100 Hours

Soooo... now that Season 2 is essentially over (it is on Nebula, but I am honour bound not to tell you anything :P), here's some ideas for Season 3 that I totally didnt nick from some other comments:

The optimal routing for the entire challenge, bar that little detour over Cancún, was pretty obvious. I'd suggest, assuming what is desired is a similar challenge, to add travel objectives. Each team has a specified set of locations as objectives for their travel. A team is allowed to close the game out with less than all of their objectives, however, if the/an other team successfully completes the race with more objectives, that takes precedence over that and constitutes a victory for the team with more objectives completed. Additionally, those objectives would give you rewards that are separate from challenges. For instance, you could be required to fly to Ulaanbaatar, however, in exchange for doing so, you may halve the price of any one of your next N flights, or shave time off your total, or multiplying the gain from the next challenge. (It could also be made such that multiple bonuses of the same kind may not be cumulated on a single flight, in order to stop being able to cheapen long haul flights by a massive amount or stack multiple challenge multipliers in order to have effectively infinite money from a single challenge.)

Additionally, more interactions between the teams would be welcome, further tying into objectives above. For instance, a team could be required to fly out of their way to Yakutsk, but as a reward, an opposing team's movement gets frozen, and they must not leave their current city for the next 3-6 hours. Or the "You are going to Brazil" objective, going to say, Manaus, but a chosen team now _has_ to now take a flight to that city as well in order to complete the challenge at all. (Though note, this will count as 1 objective completed (or maybe even 2 for further balancing) for the affected team. If the team has already visited Brazil before, they must visit the country again.)

Or just something as banal as requiring them to book their next flight in Business Class, or having to use a specific Airline (that actually serves that airport in the next 24 hours, so you can't require someone to fly Qantas while they're in say, Reykjavík with absolutely no Qantas flights ever being available.)