We recommend either:

1) A few nights at a jungle lodge

Taking a flight down to the jungle region of Puerto Maldonado and stay a few nights at a jungle lodge.

Or

2) Quito Ecuador & the Galapagos Islands

Take a two hour flight to Quito, the capital of Ecuador. Spend at least a day in arguably the most beautiful city in South America. From Quito fly to the Isla Baltra on the Galapagos Islands where you can take a cruise of the Galapagos.

Both excellent options!