I’m writing the section in my book on hobbies and interests and realise this list is for too extensive for my book. So, posting it here, with a link from the book
Aerobics
Amateur and HAM Radio
Amateur Theatre
Animal breeding
Animal communication
Animal rescuing
Animation
Antiques
Aquarium
Arrow Heads
Arts
Astrology
Astronomy
Autographs
Backpacking
Badminton
Baking
Ballet
Ballet Dancing
Barbecue and Grilling
Baseball/Softball
Basketball
Battle re-enactment
Beadwork and beading
Beekeeping
Belly Dancing
Bike riding
Bird watching (ornithology)
Blacksmithing
Body building
Bonsai
Book Making
Books
Bottles
Bouldering
Bowls
Brass rubbing
Building circuits
Bungee Jumping
Business cards
Butterflies
Cacti
Cake Making and decorating
Calendars
Calligraphy
Cameras
Camping
Candle making
Candles
Canoeing
Caravanning
Caving
CB Radio
Chess
Child care
Cinema
Classic Video Games
Clay pigeon shooting
Climbing
Clocks
Coin collecting
Collecting Music
Collecting postcards
Collecting things
Comic books
Composing Music
Computer games
Computers
Cooking
Cosmetics
Crafts
Cricket
Crochet
Cross stitch
Crystals
Curling
Currency
Cycling
Dancing
Darts
Diary keeping and journaling
Dioramas
Diving
Do it Yourself
Dog Breeding
Dog training
Doll Making
Dollhouses
Dominoes
Drawing and sketching
Driving
Electronic Hobbies
Embroidery
Enamels
Engraving
Falconry
Fashion
Fencing
Figure painting
Film Making
Fish keeping
Fishing
Fitness/ Gym
Floral Arranging
Fly Fishing
Flying Kites
Food Gardening
Food Related Hobbies
Football
Formula 1
Fossils
Fountain Pens
Four Wheeling
Frisbee
Gardening and Plants Hobbies
Geocaching
Ghost hunting
Glass Blowing
Go Karts
Going to gigs
Golfing
Greeting card making
Gunsmith
Hang Gliding
Healthy eating
Hiking
Hobbies relating to animals
Hockey
Home Automation
Home Brewing – wine/ beer/ mead
Home Canning and Jarring
Home Theatre
Horse Riding
Hot Air Ballooning
Hothouse Gardening
House plants
Hula hooping
Hunting
Hydroponics
Hypnosis
Ice-skating
Imaging
Insects
Interior design
Internet surfing
Jewellery making
Jigsaw Puzzles
jogging/ running
Juggling
Karaoke
Kitchen chemistry
Kite flying
Knitting
Knives
Lace making
Languages
Lasers
Learn an Instrument
Leather Crafting
Listening To Music
Looking after a pet
Macramé
Magic and the Occult
Magic Tricks
Making collages
Making Crafts
Making Dollhouses
Making Musical Instruments
Making Telescopes
Map making
Marquetry
Martial Arts
Memorabilia
Microscopy
Miniature Figures
Model aircraft
Model airplanes
Model figures
Model Railroads
Model Rockets
Model Ships
Model Trains
Model Yachts
Mosaics
Motor biking
Mountain biking
Mountain Climbing
Movies
Music
Natural remedies
Nature Walking
Needle point
Needle work
Newspapers
Opera
Orchid Raising
Organic Gardening
Orienteering
Origami
Paintballing
Painting and Drawing
Palmistry
Paper Dioramas (Tatebanko)
Papier Mache
Paper Making
Paper Models
Parachuting
Para-gliding
Pastel drawing
Patches
People watching
Performing Arts
Photography
Physics demonstrations
Picture framing
Pigeon racing
Pinball Machines/ arcade games
Playing cards
Playing chess or backgammon etc.
Playing computer games
Playing music
Playing musical instruments
Poetry Reading
Polo
Pool
Postcards
Posters
Pottery
Psychology
Puppet theatre
Quilling
Quilting
Quiz nights
Quotes
R/C Boats
R/C Cars
R/C Helicopters
R/C Planes
Rafting/Canoeing
Reading
Reflexology
Religions
Restoring Antiques
Robotics
Rock Climbing
Rock Collecting
Rocks & Minerals
Roller skating
Rowing
Rugby
Sailing
Scale Model Building Hobbies
Scale Models
Science (amateur)
Scrabble
Scrap-booking
Scuba Diving
Sculpture
Sewing
Shadow Boxes
Shooting
Singing
Skateboarding
Skating
Sketching
Skiing
Skydiving
Snorkelling
Snow Globes
Soap-making
Socialising
Spelunking
Splatter painting
Sports & Outdoors Hobbies
Sports Cards
Stain glass
Stamp collecting
Stamps
Storytelling
Sudoku
Surfing
Swimming
Sword fighting
Swords
Table Tennis
Tarot
Teddy bears
Telescope Making
Ten pin bowling
Tennis
Terrariums
Terry Bears
Tie Dying
Tombstone Rubbing
Toys
Train spotting
Trampolining
Travelling and exploring new places
Underwater photography
Urban exploration
Various home repairs
Vivariums
Volleyball
Walking and Hiking
War game terrain making
Watching TV
Water aerobics
Watercolour
Weaving
Weight lifting
Windsurfing
Wine Tasting
Wire Jewellery making
Wood Carving
Woodworking
Writing poetry
Yoga