How to import Wikivoyage tourism information to OsmAnd Wikivoyage is a collaborative travel guide covering 25,000 destinations.
It details hotels/restaurants/bars/attractions with opening hours etc. 

OsmAnd is an open source navigation Android app.

How to make OsmAnd display all of the data from Wikivoyage?
So that when scrolling the map, one can see the hotels/etc with their details, even when offline.
(Update: The data is now available as .gpx at https://github.com/baturin/wikivoyage-listings)

1) Download the latest .obf file at https://sourceforge.net/projects/wikivoyage/files/Listings-as-OBF/

2) Using any file management app, move the .obf file to the root of your OsmAnd folder, probably /sdcard/osmand/.

3) Start OsmAnd, and enable the "POI > Any" layer (accessible in MENU > Layers).

4) Hotels/etc should appear, visible in orange circle. Sometimes it does not work immediately, in such cases just restart your phone.