The last movement noted for Anya Robyn on AIS Marine Traffic shows her sailing from Port of Spain anchorage on 7 July 2017 for an unknown destination.

Her current position (and she has been there for probably the last 3 years) has her moored near Georgetown, Guyana in position N06.95232/W58.477.

Looking at Google Maps you can actually see her at N06.9524/W58.4777 on the western side of Wakenaam Island on a branch of the Essequibo River sandwiched between two other vessels.