Watch out for the accent up to the plateau about 7 km into day 4. There is evidence of people missing the path and continuing along the coast to the mouth of the Bloukrans. Fill up the water bottle at the last water point before the overnight hut. There are asbestos rain water tanks, but these are often dry especially in the dry months. Try to use water sparingly from these tanks, as the next group of hikers will appreciate your consideration.
Candles seem to be a good idea for night time in the huts, just clean up any mess they make.
The otter is a very shy little guy and if you see one, consider yourself lucky. Bottle nosed dolphins are a common sight and often come in close to the shore and play in the surf - look out for them at Oakhurst hut. The Knysna Loerie can quite often be seen jumping about in the upper forest canopy, and are full of character. Do not rush to get to the next hut, as you will end up missing a lot along the way. Take time to explore river mouths, swim etc.