Northern Palm Beach County

I was at the Juno Beach Pier today (5/25) at 7:35pm and saw a GIV (may possibly have been V or even III) cruising northbound just off the coast. It was going fairly slow and very low ( maybe around 1000 ft). Nothing out of PBI matches this and if anyone saw this or could help me figure it out, I’d appreciate it. The plane was standard white and the tail didn’t have NetJets style lines, but was mostly solid white with the top that was dark, either blue or black. Thanks!