Take a small daypack with you in which you can keep store your essentials like jacket, food, First Aid, etc.
Don't forget to take a pair of binoculars with you on the hike. Trust me, you don't want to miss out seeing on the tropical and endemic Seychelles birds that you will find on the trail and the from the view point.
Of course, this goes without saying but do take your camera with you so that you can click amazing pictures on the way and the at the Morne Blanc viewpoint.
5. Water Bottle
Also, don't forget to carry a water bottle with you because there isn't any water stream here. So, unless you want to die of thirst, it would be advisable to carry 2 litres of water with you.
Same goes for food as well. There aren't any shops near the trail so carry your own lunch and snacks to keep yourself full and energized.
7. Sunglasses and Sunscreen
It can be really sunny and hot at the Morne Blanc Viewpoint so carry a pair of sunglasses and good sunscreen to use.