Solution based on the one I found on CPC Power, written by Michael Lambert ->
https://www.cpc-power.com/index.php?page=detail&onglet=solution&num=13674
I simplified it a little by giving the number of times you need to go in the same direction.
N
GO LARDER
GET TORCH
S
W
MOVE PAINTING
N
GET BOOK
READ BOOK
MOVE TAPESTRY
N
GET KEY
S x2
E
S x2
GET AQUALUNG
N
W
OPEN WINDOW
GO WINDOW
W
N
GET SPECTACLES
WEAR SPECTACLES
READ BOOK
DROP SPECTACLES
DROP BOOK
GO ROSEBED
GET LADDER
S x2
E
DROP LADDER
CLIMB LADDER
E x2
MOVE BED
GO TRAPDOOR
GET SWORD
LOOK CELLAR
GO TRAPDOOR
GET MEDAL
W x2
GO WINDOW
W
S
FOLLOW PATH
THROW SWORD
THROW KEY
S
GET WHISKY
N x3
E
GET LADDER
W
S
FOLLOW PATH
WEAR AQUALUNG
GO POND
E
SAY ZONK
SWIM STREAM
DROP AQUALUNG
JUMP CHASM
GIVE WHISKY
E
MOVE ROCK
N
GET CANOE
S
W x2
DROP LADDER
DROP CANOE
E
JUMP CHASM
GET AQUALUNG
WEAR AQUALUNG
SWIM STREAM
W
GET KEY
GET SWORD
E
SWIM STREAM
DROP AQUALUNG
JUMP CHASM
W
DROP SWORD
E
JUMP CHASM
GET AQUALUNG
JUMP CHASM
W
GET CANOE
GO LAKE
WAIT
DROP KEY
DROP MEDAL
GO LAKE
WAIT
GET LADDER
GET SWORD
GO LAKE
WAIT
DROP LADDER
DROP CANOE
GET KEY
GET MEDAL
CLIMB LADDER
UNLOCK MANHOLE
OPEN MANHOLE
GO MANHOLE
DROP KEY
LOOK HEDGE
N
KILL DWARF
DROP SWORD
W
GET AXE
E
S
E
N
CHOP FOREST
DROP AXE
N
GO SHACK
GET MIRROR
S x3
E
GIVE MEDAL
S
WEAR AQUALUNG
GO POOL
N x3
GO ROSEBED
GET LADDER
S x2
E
DROP LADDER
CLIMB LADDER
E x2
GO TRAPDOOR
GET BOX
GO TRAPDOOR
W
S
DROP BOX
DROP MIRROR
