About 2 miles from Lyndhurst on the A35 heading towards Christchurch, take a left turn into the picturesque Rhinefield Ornamental Drive. This part of the Forest is home to the giant Douglas Firs, Redwoods and beautiful Rhododendrons (best viewed late May to early June, when they are in full bloom). Blackwater or Brock Hill, on the Rhinefield Ornamental Drive are two great locations to see some of the oldest and tallest Douglas Firs and Redwoods in Britain. Walk the 'Tall Trees Trail' from either Blackwater or Brockhill carpark and find the forests two tallest trees (Redwoods, standing side by side). Trees from around the world can be experienced on the 'Sensory Trail' at the Blackwater Arboretum. Rhinefield Ornamental Drive is very popular, attracting large numbers of visitors throughout the year.