How to Play Tides, by Button Shy

About Tides, from BoardGameGeek:

Take a stroll along the beach. Feel your toes digging into the sand. Discover a world of beautiful objects just waiting to be found. Whether you're picking up driftwood for your sculptures or sea glass for earrings, let Mother Nature be your muse as you follow the tides. Tides is a game about collecting items from a beach. The goal is to score as many points as you can by making the most interesting sets of items. The tide is always changing; you never know what you'll find on the beach! Take cards from the row during LOW TIDE to collect items from the beach. During HIGH TIDE, flip the double-sided cards; the back side has scoring conditions. Score a set in either LOW or HIGH TIDE, by combining items you collected with a scoring card. Play until someone reaches 50 points. Finish the current low tide/high tide cycle. The player with the highest score wins!