Hi can you use the adventures card powers 3 times in one turn.And one quick one can the diver move diagonal as well as in straight lines.Thanks.
I think you mean the Explorer. Yes the Explorer could use their diagonal moving ability for all 3 actions if they wished. The only role with an ability restricted to once per turn is the Pilot.
The Diver still moves orthogonally through flooded or missing tiles, but this could land you on a tile that is diagonal to where you started, so it may seem like you just did a diagonal movement.