Complex sentence: The use of real snow will be complemented by the temperature on the slopes being maintained at just below freezing, allowing visitors to get a real feel for skiing, whilst large video screens showing winter sports activities will ensure an authentic Alpine atmosphere.
Split into simpler sentences: The use of real snow will be complemented by the temperature on the slopes being maintained at just below freezing. This will give visitors a real feel for skiing, whilst large video screens showing winter sports activities will ensure an authentic Alpine atmosphere.