Tide table
To make the most of your trip, it is essential that you know the tide table: information about the times of high tide and low tide.
The best time to enjoy the natural pools is during low tide (period between successive high tides and low tides, when the water height decreases.
It may seem complicated, but the entire village of Porto de Galinhas is already prepared for this. The times of the tours, visits to the reefs, etc., are determined by the tide table and in different places in the village you can find out about these times. The best times are those when the sea level is the lowest (0.1-0.2 meter height is an oasis for our eyes)
If you can choose and plan the date of your trip it is worth taking a look at the board forecast available on some websites, for example:
Clima Tempo (this has the forecast for the whole year)
There are also cell phone apps that report the tide table on the nearby beaches, just search the App Store or Google play for "tide table".
That is, when planning a trip you should catch the tide going down, never going up!