Ponds can be protected with netting. Netting is available in very large sizes, and will last for a very long time out in the elements (we guarantee it!). The real trick is building a strong, affordable cable support system, with strong posts at regular intervals on either side of the pond, with strong cables suspended between them. The netting can be installed in such a way so that it can be opened to allow access. This is a complex job to undertake on your own. We can help you, just give us a call or email.