The best time to go to Andechs is the early afternoon (say, 2-3pm). They stop serving beer at 8.30pm.

There are two strategies for meeting up: the efficient German way, and the Bavarian way.

The efficient German way would be having passengers wait at a central location (e.g., Hauptbahnhof), with drivers coming by at 1.30 for pick up.

The Bavarian way, of course, would be to meet at 10.30 or so, for Weisswurst and some beer in a place like the Augustiner. The advantage of this approach is that more beer and food can be consumed (or rather: it can be consumed earlier in the day), but the downside is that we may never make it to Andechs.