activity
adventure
analyzing
day
daytime
detecting
detector
device
discovery
electrical
electronic
equipment
find
finding
ground
hobbies
hobby
holding
holds
hope
human
industry
leisure
man
metal
metal detector
metaldetector
new zealand
nz
object
occupation
outdoors
pursuit
recreation
recreational
sand
sea
search
searching
sensor
sport
summer
technology
thing
treasure
unknown
using
valuable
working