Set on the shores of the Upper Lough Erne, Crom is one of Northern Ireland's most important conservation areas and was gifted by the present Lord Erne to the National Trust in 1987.
Wildlife lovers visiting the estate can explore the romantic landscape of islands and ancient woodland in one of the Trust's most important nature reserves.
The 1,900-acre estate includes the largest surviving area of oak woodland in Northern Ireland and one of the most important and relatively unspoilt freshwater habitats.
Crom is also home to some the eldest yew trees in Ireland, and possibly Europe, at the entrance to the Old Castle Garden.
The trees are reputed to be more than 800 years old.
The two entwined old Yews with their twisted branches are male and female - the male is characterised by its small, yellow flowers whilst the female has green flowers which turn to bright red berries.
Directions
Crom Estate is just 20 minutes from Eniskillen. It is situated three miles west of Newtownbutler, on the Newtownbutler-Crom road, or follow signs from Lisnaskea.
The No 95 Ulsterbus service (connections from Belfast) runs to Newtownbutler, three miles from the site.