1. Themed Costume Hunt: Have participants dress up in costumes related to a specific theme and search for items that match that theme, such as props or decorations.

2. City Landmarks Hunt: In this urban adventure, players search for landmarks or historical sites throughout their city by solving clues and riddles.

3. DIY Escape Room: Transform your home into an escape room using puzzles, locks, and hidden objects. Participants will need to solve each puzzle to progress through the scavenger hunt.

4. Smartphone Photography Hunt: Participants take creative photos based on a provided list of prompts, with bonus points awarded for innovation and artistic merit.

5. The Amazing Race: A competitive race where teams must complete physical and mental challenges at various locations, mimicking the popular television show.

6. Bar Crawl Scavenger Hunt: Combine a fun night out with a scavenger hunt by finding items or completing tasks at different bars around town.

7. Charity Shop Hunt: Competitors look for specific types of items (vintage clothing, unique accessories) in local charity shops or thrift stores while staying within a set budget.

8. Couples Scavenger Hunt: Plan a romantic adventure for couples by incorporating sentimental locations and date ideas into the search.

9. Foodie Scavenger Hunt: Design a food-themed hunt visiting local eateries to sample culinary delights while finding clues about each location on the menu or in the décor.

10. Murder Mystery Hunt: Set up an interactive murder mystery story where players need to collect evidence, find clues, and interview suspects in order to solve the crime.

11. Road Trip Scavenger Hunt: Take your adult scavenger hunt on the road as you plan stops at quaint spots, roadside attractions, and incredible scenic views.

12. Movie Locations Tour: Curate a scavenger hunt based on nearby movie locations, using movie stills as clues to guide participants to iconic filming sites.

13. Fitness Challenge Hunt: Incorporate physical challenges, such as completing a yoga class or conquering an obstacle course, into your scavenger hunt to promote health and camaraderie among players.

14. Art Gallery Hop: Organize a gallery crawl, with riddles or clues related to specific art pieces or artists, challenging players to analyze and appreciate the works along the way.

15. Beach-Tastic Scavenger Hunt: During a beach day, have participants search for buried treasure and complete water-based challenges to make the most of the sun, sand, and surf.