Marajo in the Amazon River
I think that there's only one place in the world that such a day is possible: Maraj 
Island, a watery land mass in the Amazon River Delta bigger... [DOC] [TLE] Tidal Wetlands | Amazon Waters [PAR] The Amazon's major tidal wetlands include open waters, forests, intertidal mud ... 
the Amazon River mouth and within about 100 km of the broad mouth of Maraj... [DOC] [TLE] Maraj Island | Amazon Waters [PAR] Encompassing approximately 49,000 km2, Maraj is the largest river island in the 
world.