1985
Hotel Acuired by Tumas Group and Renamed the New Dolmen Hotel after an extensive upgrading process in which 132 rooms were added
1988
Further 127 rooms and timeshare apartments were added
1992
The Oracle Conference Centre was inaugurated.
1998
Inaugurated the Oracle Casino.
2001
Amazonia Beach Lido , Batubulan Restaurant, VIP club and the Amazonia Nightclub where Opened for the first summer.
2004
Over the past months, the Dolmen Resort Hotel in Qawra has undergone a refurbishment process amounting to Lm2.5 million. The Delos Cafeteria , outside areas, and 150 bedrooms and bathrooms were tastefully redesigned and a state-of-the-art spa centre was created. This has contributed to making the Dolmen Resort Hotel a unique property, with the most facilities on the island.