2- Enterance to Zora's domain, which is its own area and does not appear on the map. You will find a heart piece and can buy the flippers for 500 rupees.
3- Whirlpool that leads to lake Hylia.
4- A hole under a bush will leave to a big faerie fountain.
5- Whirlpool that leads to Hyrule field.
6- Potion shop. Red potion: 120 rupees, green potion: 60 rupees, blue potion: 160 rupees. If you give the witch outside the shop the mushroom you will get the magic powder.