Is it currently (28-Apr-2020) possible for Europeans to cross from Guatemala into Mexico overland at one of the two borders close to Tapachula: (1) Tecun Umán / Hidalgo or (2) Carmen / Talismán.
I have been told that (a) the border is closed due to a migrant caravan and (b) even if the border was open, roads are being blocked by locals.
UPDATE (29-Apr-2020). One taxi driver told me that both border crossings at Tapachula are closed. Another taxi driver told me that the border crossing at El Carmen (the smaller of the two) can still be crossed without problems. Both taxi drivers claim to have contacted their friends at the border to make sure. Our embassy says that the border crossing is still open (they did not specify which one).
UPDATE (29-Apr-2020). Both taxi drivers said that the border crossing at La Mesilla is still open (= allowing tourists to cross into Mexico). This is the crossing on the way to San Cristobal. The embassy discouraged that crossing because of "drugs traffic" although we had no trouble crossing it into Guatemala from the Mexico side back in Feb when the tourists shuttles were still running. Another problem with this crossing is that it is still 3-4 hours by car to San Cristobal after crossing the border, and I do not know what the taxi situation is on the Mexico side. Guatemala taxis are not allowed to cross. Thus, the safest option would be to pre-book a Mexican taxi from San Cristobal to meet you on the other side.