There are many things to do and beautiful places to visit with two hours drive or closer including:

Safari and Game viewing in and around the vast Kruger Park with a huge choice of four wheel, four legs (equine) or walking safaris to choopse from and to suit every pocket. 

Explore the Drakensberg Mountains with the Blyde River Canyon; picnic and swim at MacMac Falls; visit the old goldmining town Pilgrim's Rest or the kingdom of Swaziland, a mini Scotland.

Sport and Adventure: 5 minutes away is a championship golf course, tennis, squash and horse riding.  About half an hour's drive and you have white water canoes (gentle canoeing with some rapids and fun for all the family); quad bikes; mountain biking and balloon rides. Nelspruit has a go-kart track.

Shopping is fun at the Nelspruit Riverside Mall and in the many stalls and shops in the area.

Other attractions include the Sudwala caves with amazing stalagnites and stalagtites; the Swazi Village which has an interesting and fun evening demonstrating life and dance in a living re-creation of a Swazi Village and you can taste the fried Mopani worm if you must!

Getting Around:   Public transport in South Africa is not great.  Accordingly, we recommend that you hire a car while travelling around the country

Weather
September is spring in South Africa but this area has a temperate climate all year round (winter is not dis-similar to an English summer!). 
South Africa is a big country with a varied climate.  The Cape, for example, has a Mediterranean climate with winter rainfall, whereas this area in the North East is more tropical with summer rainfall.   

Malaria
White River is not subject to Malaria but anti-malaria is recommended for the Kruger and surrounding game areas and Mozambique but please obtain your own advice on this subject as it can vary.

Or head off to Mozambique for beautiful beaches and a different adventure at ear Tofo not far from Inhambane!.......See web sites for Barra Lodge or stay at Casa Barry in Tofo.