Neptune, Hardwick Park

The original Neptune statue was placed in the Serpentine Lake in June 1758 by John Burdon, it was in position until around 1945 when it disappeared. Photos show it to be the same design as the 1729 Neptune in Durham Market Square which was sculpted by Andrew Carpenter.
Hardwick Park, Neptune
Hardwick Park, Neptune
This replacement sculpted by Keith Maddison was unveiled by John Grundy on 14th June 2007
Hardwick Park, Neptune

Bono Retiro and Bottle Pond, Hardwick Park

The Bono Retiro dates from the 1750s like all the other buildings in the park, it has recently been consolidated to prevent further damage.
Hardwick Park, Bono Retiro
Hardwick Park, Bono Retiro
Much more existed relatively recently as this 1956 photo shows, a full model can be seen here.

Apparently the structure originally had a mirror in the entrance, which reflected the bottle pond and cascade behind you while entering.
Hardwick Park, Bottle Pond

John Burdon Chair, Hardwick Park

This metal chair records John Burdon, the creator of Hardwick Park in the 1750s
Hardwick Park John Burdon Chair
It notes that his fortune was due his fathers mining interests.

The National Archives appear to carry a copy will of John Burdon which shows he also had mining interests. 
Wolsingham, Durham: leaseholds from Bishop of Durham
Quarrington, Durham: leasehold coal mines
Sedgefield, Durham: 2 copyholds
Bishop Middleham, Durham: 7 copyhold pitmen’s houses in Cornforth
Coxhoe, Durham: lead and coal mines, lands
Tynemouth, Northumberland: 1/16 share in freehold coal mine at Chirton