Timba and Willo are the two main Gatwick holding stacks.
Timba is at MAY R132 DME 7.
Willo is at MID R108 DME 7.
Holly is the point on the STAR at which you turn towards Willo to enter the hold.
Likewise, Larck is the point on the Timba star that you turn towards Timba to enter the hold.
HTH.
WF.