Tagging large sites entrance / area

What is the best way to tag large touristic sites (museums, theme parks, campsites) - where should I put the tags - name, type, fee etc. There are two options:

Add tags to the area covering the whole site

this has more logic in osm world, but it is less pracical

1. Icons denoting site are put in the center whereas on "normal" maps they are often placed at the main entry/reception/box office which helps navigation to the site greatly.
2. Automatic navigation can be confused and the visitor can find himeslf coming from very wrong direction. This happened to me and it is very flustrating - it this case LESS information (one point at the entry) would be in fact more

Add tags to the main entry/reception/box office

It does not have the disadvantages mentioned before and helps navigation however

1. a. I feel it is somehow against OSM good practise.
2. b. The connection betwean the tags about the whole site is totally disconnected to the rest of the site - access restrictions for example but others as well.

Some examples

• Skanzen Strážnice - the basic information - from where to come as a turist is not presented. THere are two gates and only by human heuristic you may guess that the eastern one is the main entrance. Funny think is that recently someone added to the entry way name "vstupní cesta" (entry road in Czech) to help tourists to find it. This is obviously not very systematic - the way does not have this name - it is just a track going to main info centre. However it helps to remporarily solve the problem.
• Prague ZOO - in this case is difficult to guess correct entrance even for local people as it has changed recently. It is very well mapped, but as there is no way to mark the entrance it is again left on the imagination of turists where they will stop their car. It is a pity, as this is exactly the usecase where OSM could excel and surpass other maps.