The only way to get Snorlax out of the way is use the PokeFlute, which will wake up Snorlax and forcing you to battle it. Once captured or defeated, Snorlax will be gone and you are clear to go through the road. The PokeFlute can be obtained by saving Mr. Fuji in the Lavender Tower.
go to your radio move the target all the way to the top to the poke flute it will wake up
The same way you got in, or use the escape rope or the move dig.
Tune into the radio on the pokegear and find the pokeflute channel play it near snorlax to wake it up capture it then you can go in diglett's cave.
First you have to get the electricity working again, then if you go to Lavender town at the radio tower you get a update for the pokegear. There will be a Pokeflute channel on the radio and you have to play it next to the Snorlax.
You Need To go to the Lavender town radio tower get the radio card and then you go to pokegear, then go to the radio put the station selector all the way to the right it will be the pokeflute station do that next to the snorlax.
you go to the lavender town radio station than go to the old guy inside talk to him and he will upgrade your pokegear. Next go to the snorlax than click on your pokegear and go to the radio part. Then you move the little circle to the top of the bigger circle and exit out of the pokegear. Finally talk to the snorlax and it will wake up and you will battle it. Snorlax is a level50
You cannot obtain Snorlax any other way
You don't have to capture it, you just have to move it out of the way so if you faint it then it's not a problem cause the path is no longer blocked
No way for ya
Breed snorlax.
Get a radio card, so you can use the radio. Go to the Snorlax outside Diglett Cave, and move the signal to the middle-top of the signal finder thing. It will play "Pokéflute." Then press A while facing the Snorlax and it wakes up, then you have to battle it. It's worth catching in my opinion, was it is level 50 and has Giga Impact as a move already. Catch or defeat it to make it go, then you can enter Diglett Cave. If you do not catch it but want to, it sometimes appears on the route to the right of the route you are already on. Then it is the battle again.