When it comes to keeping campgrounds clean and wildlife safe, investing in proper animal-proof trash bins is crucial. I'd definitely recommend looking into certified bear-resistant containers from brands like BearSaver or TuffBoxx. These are specifically tested and proven to withstand curious bears while being durable enough for public use.
For areas with smaller pests like raccoons, possums, or squirrels, I've had great success with simple yet effective designs featuring locking lids and sturdy construction. The Rubbermaid Commercial Products Brute containers with animal-proof lids work well, and many municipalities now use these for their durability and security features.
What makes these bins effective isn't just their strength - it's the intelligent locking mechanisms that require human-level dexterity to open. Many feature paw-resistant latches that animals simply can't manipulate. I'd suggest looking for bins with these key features: metal construction or reinforced plastic, multiple locking points, and smooth surfaces that prevent animals from getting grip.
Remember that proper placement matters too - keeping bins away from sleeping areas and maintaining regular cleaning schedules will significantly reduce wildlife interactions. Many campgrounds have successfully reduced animal problems by 80-90% just by upgrading to proper animal-resistant bins and educating visitors about proper waste disposal.