Lac is a large bay on the southeastern part of Bonaire with an important part under the protection of STINAPA (National Parks Foundation). At Sorobon, on the western side of the bay, the sea is shallow, the waters turquoise, and steady tradewinds blow in the bay, making it the best spot for windsurfing (kitesurfing is not allowed here). This being Bonaire, the area is still very underdeveloped, nothing is overdone or too tacky, and rarely overcrowded (except maybe on cruiseship days). The mangrove area on the eastern side is a protected area, so to discover the fascinating world of these salt water trees, you need to go on a guided kayak tour. It's a great way to learn about the important role they play in the ecosystem, and also to encounter the weird upside-down jelly fish, head firmly in the sand. Even if you're on a budget, go for the two-hour tour instead of the one-hour. The 15 minutes of snorkelling that are included half way through the tour are well worth the extra bucks: the colourful spectacle the algae-covered roots offer underwater is simply amazing.