If you've got a car, it's easy enough to get here, but it's a little out of the way by public transport and took me a far while to arrive - including working for at least 40 minutes from the bus stop.
Aside from that, this is an interesting site but there isn't a lot to see of value. There are a few ruins and evidence of the land structures here, but the main reason for listing - the use by humans over so many years - you have to get from the information boards.
Still, there's a good museum and it's a pretty place for a walk. It can take quite a while to go around the whole site by foot (up to 2 hours) so leave plenty of time if that's what you're hoping to do