Possible Clues:

• From pavilion, stare at first two from bowler
• Look steadily round, following front of building — this small one?
• Look over outskirts of Bilbao to belvedere
• Look admiringly at heads of blossoming orchids from here perhaps
• Summerhouse with a good view
• Shady spot in a 52-Down
• Raised summer-house with view
• Summer house with a wide view
• View first couple of borders as garden feature
• Summer-house