Do the marlborough sounds have sandflies?

Yes, the Marlborough Sounds in New Zealand do have sandflies. These small, biting insects are commonly found in damp, forested areas and near water bodies throughout the region. While they can be a nuisance, especially in warmer months, their presence is typical in many natural, scenic areas of New Zealand. It's advisable for visitors to take precautions to avoid bites, such as using insect repellent.