By bus  take  Guayaquil - Santa Elena  and there change  to  bus  that  go to Cruce de Palmar there take  cab to Hosteria Playa Rosada they charge  3 dollars.
(in  Santa Elena when you get off the bus, can take  taxi  to Hosteria Playa Rosada for 10 dollares ask for Don  Lucho or other).

The bus  that  go Guayaquil - Montañita pass for Cruce de Palmar too but there is  few shift  daily.