Blow it up and take a swim!
Sea Monster Floatie price in Growtopia: sells for about 5 DL, buyers pay about 1 DL 50 WL (median of 100 offers from community Discords, past 30 days). Live price chart and the latest buy and sell offers.
Recently sold at: FINAP, HVSALES, LESBE, BRIKZ, VENDPH