No proof. Didn’t even bring a bag was more trying to tire him out! I left all but his first. I had to take a picture. He practically found it right by my foot. Thought he was mistaken but wow did he train his eye fast. His was solo about 45 mins after dads find of 4. Three I believe are pictured but there was a fourth very near the three. Proud dad he’s only three what am I gunna do lol.