Right then

The serious planning for #CrossBorderRail South East Europe has to start with *what rail borders* do I want to investigate

These are all now as pins in the map
https://umap.openstreetmap.fr/en/map/crossborderrail-south-east-europe_991708#7/43.619/20.660

The emphasis: ALL the places where lines exist between non-EU countries in SE Europe, external borders of the EU, and a couple of Croatian borders I am missing

Dark blue: must visit
Light blue: either have visited before and don't need re-checking, or are insignificant but could be added

#CrossBorderRail South East Europe - uMap

uMap lets you create maps with OpenStreetMap layers in a minute and embed them in your site.

There are 30 must-go borders:

Slavonski ล amac ๐Ÿ‡ญ๐Ÿ‡ท - ล amac ๐Ÿ‡ง๐Ÿ‡ฆ
Drenovci ๐Ÿ‡ญ๐Ÿ‡ท - Brฤko ๐Ÿ‡ง๐Ÿ‡ฆ
Donja Borina ๐Ÿ‡ท๐Ÿ‡ธ - Karakaj ๐Ÿ‡ง๐Ÿ‡ฆ
Tovarnik ๐Ÿ‡ญ๐Ÿ‡ท - ล id ๐Ÿ‡ท๐Ÿ‡ธ
Bogojevo ๐Ÿ‡ท๐Ÿ‡ธ - Erdut ๐Ÿ‡ญ๐Ÿ‡ท
Apatin - Svilojevo ๐Ÿ‡ท๐Ÿ‡ธ
Rรถszke ๐Ÿ‡ญ๐Ÿ‡บ - Horgoลก ๐Ÿ‡ท๐Ÿ‡ธ
Stamora Moravita ๐Ÿ‡ท๐Ÿ‡ด - Vrsac ๐Ÿ‡ท๐Ÿ‡ธ
Dragoman ๐Ÿ‡ง๐Ÿ‡ฌ - Dimitrovgrad ๐Ÿ‡ท๐Ÿ‡ธ
Being constructed - Kumanovo ๐Ÿ‡ฒ๐Ÿ‡ฐ - Kriva Palanka ๐Ÿ‡ฒ๐Ÿ‡ฐ - Gyueshovo ๐Ÿ‡ง๐Ÿ‡ฌ
Preลกevo ๐Ÿ‡ท๐Ÿ‡ธ - Tabanovce ๐Ÿ‡ฒ๐Ÿ‡ฐ
Blace ๐Ÿ‡ฒ๐Ÿ‡ฐ - Han i Elezit ๐Ÿ‡ฝ๐Ÿ‡ฐ
Plakovo ๐Ÿ‡ท๐Ÿ‡ธ - Jarinjรซ ๐Ÿ‡ฝ๐Ÿ‡ฐ
Kremenica ๐Ÿ‡ฒ๐Ÿ‡ฐ - Neos Kafkasos ๐Ÿ‡ฌ๐Ÿ‡ท
Gevelija ๐Ÿ‡ฒ๐Ÿ‡ฐ - Idomeni ๐Ÿ‡ฌ๐Ÿ‡ท
Future Line - Lin ๐Ÿ‡ฆ๐Ÿ‡ฑ - Radozhda ๐Ÿ‡ฒ๐Ÿ‡ฐ

must-go, cont.:

Former 760mm gauge - Trebinje ๐Ÿ‡ง๐Ÿ‡ฆ - Niksic ๐Ÿ‡ฒ๐Ÿ‡ช
Metkoviฤ‡ ๐Ÿ‡ญ๐Ÿ‡ท - ฤŒapljina ๐Ÿ‡ง๐Ÿ‡ฆ
Novakovici ๐Ÿ‡ญ๐Ÿ‡ท - Jarici ๐Ÿ‡ง๐Ÿ‡ฆ
Loksun ๐Ÿ‡ญ๐Ÿ‡ท - Bihac ๐Ÿ‡ง๐Ÿ‡ฆ
Volinja ๐Ÿ‡ญ๐Ÿ‡ท - Dobrljin ๐Ÿ‡ง๐Ÿ‡ฆ
Rakitovec ๐Ÿ‡ธ๐Ÿ‡ฎ - Buzet ๐Ÿ‡ญ๐Ÿ‡ท
Ilirska Bistrica ๐Ÿ‡ธ๐Ÿ‡ฎ - ล apjane ๐Ÿ‡ญ๐Ÿ‡ท
Imeno ๐Ÿ‡ธ๐Ÿ‡ฎ - Kumrovec ๐Ÿ‡ญ๐Ÿ‡ท
Sveti Rog ob Sotli ๐Ÿ‡ธ๐Ÿ‡ฎ - รurmanec ๐Ÿ‡ญ๐Ÿ‡ท
Srediลกce ob Dravi ๐Ÿ‡ธ๐Ÿ‡ฎ - Cakovec ๐Ÿ‡ญ๐Ÿ‡ท
Kotoriba ๐Ÿ‡ญ๐Ÿ‡ท - Murakeresztรบr ๐Ÿ‡ญ๐Ÿ‡บ
Beli Manastir ๐Ÿ‡ญ๐Ÿ‡ท - Magyarbรณly ๐Ÿ‡ญ๐Ÿ‡บ
Jimbolia ๐Ÿ‡ท๐Ÿ‡ด - Kikinda ๐Ÿ‡ท๐Ÿ‡ธ
Tuzi ๐Ÿ‡ฒ๐Ÿ‡ช - Vukpalaj-Bajze ๐Ÿ‡ฆ๐Ÿ‡ฑ

And 7 go if possible:

Cenad ๐Ÿ‡ท๐Ÿ‡ด - Apรกtfalva ๐Ÿ‡ญ๐Ÿ‡บ
Rogatec ๐Ÿ‡ธ๐Ÿ‡ฎ - Hum na Sutli ๐Ÿ‡ญ๐Ÿ‡ท
Baranjsko Petrovo Selo ๐Ÿ‡ญ๐Ÿ‡ท - Beremend ๐Ÿ‡ญ๐Ÿ‡บ
Bijelo Polje ๐Ÿ‡ฒ๐Ÿ‡ช - Kumanica ๐Ÿ‡ท๐Ÿ‡ธ
ล trpci ๐Ÿ‡ง๐Ÿ‡ฆ - Mramorje ๐Ÿ‡ท๐Ÿ‡ธ
ล trpci ๐Ÿ‡ง๐Ÿ‡ฆ - Jablanica ๐Ÿ‡ท๐Ÿ‡ธ
760mm gauge ล arganska osmica - Vardiลกte ๐Ÿ‡ง๐Ÿ‡ฆ - Mokra Gora ๐Ÿ‡ท๐Ÿ‡ธ

So to the questions:
- are there any borders I ought to visit, and are missing?
- other than Belgrade-Bar and Sarajevo-Mostar are there extra scenic routes I should take?
- friendly activists I should meet in any of the places en route?

My next step:
- trying to find a viable timetable through all of this! Inc. buses, and trying to avoid cycling on dangerous roads!

#CrossBorderRail 2024 - it's going to happen ๐Ÿ™‚

@jon have you done Finland to Sweden yet ?
@quixoticgeek Pinks and oranges are places I have been. Greys are ones I am missing https://umap.openstreetmap.fr/en/map/crossborderrail-all-the-borders_935041#5/52.818/21.425
#CrossBorderRail All The Borders - uMap

uMap lets you create maps with OpenStreetMap layers in a minute and embed them in your site.