Threave’s wonderful garden has been created over the years by students of the National Trust for Scotland's School of Heritage Gardening – and is a fine example of landscaped beauty. The garden is divided into a series of smaller gardens to showcase different styles, including a rose garden, rockery and walled garden. At the centre stands Threave House, designed in the Scottish Baronial style in 1871 for the Gordon family. Many of its rooms are displayed as they were in the 1930s.
The garden is in the care of The National Trust for Scotland.
The wider estate includes the flagship bat reserve. There are many walks and trails to follow including viewpoints providing fine views of the estate. The nature reserve is a Special Protection Area for breeding waders and wintering wildfowl – pink-footed geese and Greenland white-fronted geese are regular visitors. A number of hides are available. The imposing ruined tower of Threave Castle is also well worth a visit. It is in the care of Historic Scotland and requires a short trip in a boat to reach the island on which it stands.