Have you thought about using immersive VR panoramas for your
"Virtual Walkabouts"? The navigation is much more intuitive than
stills, plus they give you a really good idea of the layout of the site.
We've had a virtual tour of the Beaghmore complex using full
spherical panoramas on our site for over year now. There are aerial
as well as ground level views, you can look in any direction and there
is a zoom function. It also has fully interactive maps.
Have a look at
for the Java version which most folk will be able to view with their
standard browsers. (Watch out for line wrap on the URL).
MEGALITHICS - VR panoramas, images and information on megalithic sites in the British Isles and Eire.