Water in Tamarindo Costa Rica? ✈️ Foro The Independent Traveller (English) ✈️

Hi fellow travellers!

I am wondering if I want to go to Tamarindo for surfing and found out that, the beach has lost its "bandera azul" due to water contamination.
Is there anybody who traveled to Tamarindo lately to share some experience? Which beaches exist, where I can learn surfing and don't have the huge number of tourists?

I thank you in advance for your help!
Cheers

Kai