We did the house and garden tour, but I believe there are other tours. They also have a repertory society which puts on an annual performance at the property.
The small negative first, then the large positive:
I must start by saying that the website is pretty lame. It offers much but delivers little in terms of information one might need in organising oneself to visit the property. Unfortunately the service offered via phone isn't much better. When you ring to book, you pay over the phone but then they want to mail the tickets to you so you are at the mercy of Australia Post. Good luck! We received our tickets the day after we did the tour!
So, having arrived at the meeting point at the designated time, the Beleura bus comes to pick you up. This is because the neighbours have found it difficult to cope with the traffic caused by the dozens of cars that would be coming and going each day. Anyway, the very nice bus driver delivers you to the door of the house where morning tea is served, whilst the CEO of the Beleura foundation delivers an entertaining oral history of the house. Several small groups are then taken, by guides, around either the interior of the house or the gardens, on a tour lasting almost 2 hours.
Lunch is served: really delicious sandwiches with various gourmet fillings, then a huge wedge of cake and another cup of tea or coffee. Then the tour is on again, with the small groups exploring the house or garden, whichever they missed on the first round, before being taken back to their cars by the friendly man with the bus.
This house and garden are looked after financially by their own trust fund, and there are 150-odd volunteers keeping it ship-shape. It is a fantastic tourist activity, and for the money, very good value.
There are quite a few steps to negotiate. They are manageable with a wheeler but a wheelchair would not work. And bear in mind, it is, in the end, about four hours of walking and standing. But if none of that puts you off, I would highly recommend it!

Approximate cost: $39

You have to book to visit this home and then on the day are picked up at Mornington Art Gallery about 9.45 arriving at the home by 10.00am. Morning tea was then provided and the director spoke about the history of the place. There were about 50 visitors and we were divided into small groups each with a volunteer guide - some toured the gardens while others toured the house. Lunch was served in the comfortable visitors' centre and again the director provided more information. We finally arrived back at the Art Gallery at 3.00pm after an enjoyable day.

Approximate cost: $33 for me and concession