As other teams get the clue, they leave silently so other teams can't piggyback. 
Several teams still having trouble. 
Walking through the streets, Mark/Bill out of breath. 
One team calls a taxi. 
Andrew/Dan get taxi as do Toni/Dallas, Ken/Tina. 
But the streets are packed with cars and they're not moving. 
On the ground is faster. 
CLUE, Andrew/Dan, DETOUR. 
Phil: Two different ways to navigate. 
Musical march, on foot to two plazas several blocks apart. Form a band of musicians, deliver to a band leader several blocks away. 
Bumpy ride, choose bicycles, use a map, ride down cobblestone streets to a plaza for the next clue. 
U-TURN appears at the END OF THE DETOUR. 
Phil: Teams can use the power of the u-turn only once through the Race, to make the team do BOTH detours.