Turn right and you will find yourself back where you started on Upper Yango Creek Rd. Turn right again into Yango Creek Rd which will lead back to the Old Northern Road at Laguna. Park your car on the roadside if you wish to inspect the drainage arch in question which is clearly visible. It was made of carefully assembled dressed stone without mortar by convicts working under severe circumstances on difficult terrain as part of the construction of the Great North Road. There is an explanatory signpost.
Prices are reasonable and programs for school groups are a specialty.
The sun can be studied in the day time though there is, of course, far more to see at night, if the weather is good. There are models, video displays and explanatory talks accompanying the two longer sessions concerning the solar system and astronomic technology. The observatory is thoroughly enjoyable and can be opened at any time for groups if bookings are prearranged. Creek Vineyard Tours in Belford provide daily mini coach tours of the Lower Hunter vineyards.