Motorized watercraft sit outside the policy
A personal watercraft or a boat is generally excluded from renters cover for both damage and liability, in the same way a car is. It needs its own policy. Tenants frequently hold a renters policy and a jet ski and assume one covers the other.
Unmotorized gear is contents, with limits
Paddleboards, kayaks and wetsuits are usually personal property, covered subject to your limit and deductible, and potentially under a sporting goods cap. The total value of this equipment in a Havasu household is frequently higher than the furniture.
Where it is stored changes the answer
Equipment kept in a shared carport, a storage unit or on a trailer is away from the dwelling in policy terms, which can mean a reduced limit. Knowing where things live matters as much as knowing what they cost.