Originally posted by Egg.exe:

i didn't know portals were a thing

You need 4 surtling cores, 40 fine wood, and 20 greydwarf eyes to make a pair of portals (can't teleport without a second one =p)

Every portal only connects to one other portal and they both need to be named the same thing, so if you want a portal from your base to the swamp you'll have to name them both "ass" or something else.

I have heard of people being able to connect 4 portals all with the same name buuuut I haven't tried it and I found that on the wiki so for all I know someone was trolling (or it is just outdated or something.)

In any case, find a shoreline near some meadows and you'll find flint, if you are unsure about if an area will have flint you can also look for any Necks (they spawn in the same area) and that'll be a good spot for it.

Also, if you are reeeeaaally lucky you may find a marsh-like meadow (not an actual biome name, just discription) with lots of shallow pools/flint/necks. =p