[quote=@DocTachyon]
Teleportation isn't outside the realm of possibility, since The Surfer teleported the villains to each hero. Maybe he somehow senses that the challenge is complete and teleports each Hero(and those that helped them, despite not officially being part of the challenge ex. Wonder Woman) to whatever the location of the showdown will end up being? That'd alleviate travel pains for a character like Gwen.
[/quote]

On that note, since Bekka and Gwen are together right now, Bekka can use her Mother Box to teleport both as an alternative to the Surfer doing it.

We just need a location to aim for.