Michelle Monaghan is making the most of another adventure in Indonesia. The 50-year-old actress shared a series of vacation photos from the tropical getaway, posing in a colorful string bikini while spending time in the clear blue water. Monaghan opened the Instagram carousel with a playful photo of herself standing thigh-deep in the sea with her arms stretched out to either side and her tongue out. She wore a multicolored triangle bikini with tie-side bottoms and gold accents, pairing the swimsuit with an oversized woven sun hat. A quiet shoreline and rolling hills stretched behind her under a cloudless blue sky. “Brb maxxed out 🇮🇩,”…