The early Polynesian navigaters

In science we have been learning about the polynesian navigaters

Early polynesion navigation: 

Would you be able to cross the pacific ocean without a GPS? The early polynesion wayfinders used clouds, water, stars,sun, birds, and fish to navigate the ocean.

They used clouds, water, stars, sun, birds and fish to navigate because they had nothing else to use to navigate.

They used clouds to reflect the lagoons and then they knew an island was close by.

Also big groups of clouds would be above a mountainous island. 

Birds could fly 190km from land. Also they would fly back to land eventually.

The polynesion navigators used the sun to travel east and west.  The sun would rise in the east. And set in the west.

In conclusion, the early polynesion wayfinders used clouds, water, stars, sun, birds, and fish to navigate the ocean.