No photo— a long slip v-neck dress with a defined vertical wave pattern

I was just in Italy and saw a girl wearing this stress on the beach. I’ve been googling for it and can’t find it. It was a long dress to about mid calf on her, v-neck, fell very simply with no cinching anywhere, just very casual. It had spaghetti straps and a thick waving pattern that went vertically. The colors were a mixture of something like blue, white, green?, brown?, black?… I can’t remember exactly! And the colors did not fade into one another. Help me!! It was so cute! Thanks in advance.