The area now generally known as Cala d'Or on the east coast of Mallorca has absorbed previously separate villages such as Cala d'Egos, Cala Esmeralda, and Cala Serena. Club Martha's is a very large resort complex 300 metres from the beach at Cala d'Egos and a good 30 to 40 minute walk around the harbour area from the centre of Cala d'Or proper.

Facilities in this large complex are shared by Club Martha's (apartments and studios), Ses Cases d'Or (apartments only), and Bolero (apartments and studios) so be sure that your package is clear on just where you are booked. You should also be aware that small electrical items such as kettles, fans, hair dryers, and even the TV remote are rentable separately at extra charge - this is often not clearly stated in brochures and can be an expensive and unpleasant surprise.