If you're worried about drinking and driving use a taxi.
Otherwise it is easy to find and get to. It'll take about 15 minutes to get there from Hastings.
There is a bus that goes past, FYI it is a self guided tour or it was the last time I went. There was a small sampling at the end.
Make a day of it and include it in your tour, you'll have a taxi, no problems with enjoying yourself.
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