Outdoor Hammock and Amenity Setup

I need to elevate an outdoor grass area to create a relaxing environment with 3-4 lounging hammocks and a small amenity area, ideally with cornhole and possibly a mini golf setup.

Key Requirements:
- Elevation of the existing grass area
- Installation of 3-4 hammocks
- Setup of a small amenity area, including cornhole and potentially mini golf

Ideal Skills and Experience:
- Landscaping experience
- Ability to design and install outdoor lounging setups
- Construction skills for building a small amenity area

Please provide a detailed plan and cost estimate.