There are numerous synonyms for the phrase "play in water" that can help you add variety to your writing. Some possible options include splashing, wading, frolicking, paddling, swimming, and soaking. Other playful verbs to consider might include diving, jumping, ducking, diving, or even snorkeling. Alternatively, if your focus is more on the act of being near water, you could use verbs like lounging, lazing, or basking. No matter which synonyms you choose, they can add depth and interest to your writing, depicting playful interactions with water that evoke both joy and relaxation.