If you’re looking to do some saltwater fishing from a lightweight kayak, an inflatable is a good option. Look closely at the transom (the wide, flat area at the very back of the craft). It should be well made and sturdy, ideally reinforced with with fiberglass. The kayak’s floorboards should assemble easily. It’s very important to carefully consider the overall strength and durability of an ocean-going inflatable - safety is first and foremost in this sport.