The server has a few ways of easy public Transportation that can be used by anyone, whether they are made by admins or players, but the Nether is by far the best, and somewhat essential, form of travelling. If you can’t make a portal yet, using a public one is the best option you have.
The main point of reference is the Nether Hub, located at 0, 0. Around it are 4 hubs of different colors: Blue, Green, Yellow and Pink, from these 4 places you can get pretty much anywhere in the server, including Moonland, the Spawn, many of the public Farms and Union Hubs.