Dumb (dumb!) question: How do I route to a Custom POI?

I created a CSV file with some custom POIs for parking areas for
hiking. Cool. I used the Garmin Custom POI Loader to put them on my
Nuvi (255W). Worked great. Ok, now the POIs are on my GPS. But I
can't figure out how to route to one. I want to go to a particular
parking area, how do I tell the GPS?

I know this is a stupid question (so stupid that Google hasn't been
any help). Can someone enlighten me?

Thanks,
tim

Where To, Extras, Custom POIs. select that database, find the parking area
you want, hit GO

Extras! That's where it is hidden.

Thanks so much!
tim