There aren't any red-dot maps for general travel in most cases. The wiki has a number of small maps showing red-dot routes for individual quests and missions, but I don't think any of those will help, since there are no quests leading you to Beetletun. The map for
The Hot Springs Murders quest is the closest you will get, since all you need to do is head west from where that quest begins.
You can't go directly to Beetletun from ToA because there is no portal directly between Black Curtain and either of the two areas connected to Beetletun (Nebo Terrace and Watchtower Coast). You would have to go back to Cursed Lands, through there to Nebo Terrace, then north, then west. It would be shorter and easier to start from Bergen Hot Springs, if you stopped there on the way to ToA, or from LA. Beetletun is almost directly west of the portal between N. Kryta Province and Nebo Terrace.
Another alternative is to do the D'Alessio Seaboard mission, which transports you to the Divinity Coast outpost at the end. From Divinity Coast, work your way east through Watchtower Coast.
but I'm having fun just running around exploring different places. I wonder if there is a site that has maps with the routes marked out for how to get from place to place? Like right now I've gotten to the Temple of Ages but I can't find Beetletun and some other towns I know are there somewhere because I have seen maps with the towns marked. But I try to get there and run into some mountains that I can't cross or poisonous swamps or what have you. 
