User blog comment:King Sea Dragon/King Sea Dragon's Latest Terrible Idea!/@comment-24558195-20180530183221

The Jetstreams, long networks of tunnels that move the player, creatures, and vehicles at rather high speeds with potential use for speedy travel.

Could contain new materials and/or fauna with uses in creating speed increasing equipment upgrades, the material wqould of a hydrodynamic look.

Some streams may have dangerous flora/fauna that act as nets to grab and damage whatever is unfortunate enough to get caught.