YOU SAID:
If you do not have a snow skiing gear, you can not get on the boat
INTO JAPANESE
あなたがスノースキーギアを持っていない場合は、ボートに乗ることができない
BACK INTO ENGLISH
If you don't have snow ski gear, you can't get on the boat
INTO JAPANESE
あなたが雪のスキーギアを持っていない場合は、ボートに乗ることができません
BACK INTO ENGLISH
If you don't have snow ski gear, you can't get on the boat
That didn't even make that much sense in English.