Lavigne was back on the beach again yesterday and slipped into a skimpy green bikini of her own design before joining her friends for a spot of snorkelling.
Leaving her luxury yacht for a smaller dingy, Avril donned a snorkelling mask before diving in.
She proved the perfect advert for her green bikini, which is from her own clothing range, Abbey Dawn and costs $50.
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Action gurl: Avril showed off her body as went snorkelling around the sea of Cortez in Mexico wearing a green bikini yesterday