A marvelous feat of engineering that involved an underground water chamber; it created a natural air-conditioning that cooled the entire area when in operation.

Now these vacationers, known as the Floridians, have returned to share memories and the natural air-conditioning with summertime companions of old.

This would ventilate smoke from the building in case of fire and provide natural air-conditioning.

With an advanced form of natural air-conditioning, this building was designed to respond precisely to Harare's climate and needs, rather than import less suitable designs.

The screened-in kitchen area also contributes to the natural air-conditioning of the cottages by allowing the trade winds to waft gently through the structure.

It has been designed to reduce the energy bills by providing natural air-conditioning.

When an outsider complains that it turns summer to winter, the natives counter with talk of "natural air-conditioning."

This construction provided natural air-conditioning, kept the house relatively free of insects and protected the finer furnishings from flooding.

It is estimated that 50 days of natural air-conditioning in a year will achieve a saving of 380,000 kilowatt-hours.

In high summer, temperatures top 100F (38C); luckily, a series of elongated, cold blue lakes provides natural air-conditioning.