No special access issues
You can park in the village of Cavigliano. Please don't park on private parking spots.
The spot is right under the bridge.To access it you need to go down in the river from its south side. You can do it just west the bridge named "Ponte Dei Cavalli". You'll have to cross the river: This may be tricky if you've got kids or if you're carrying a lot (walking on uneven rocks).
If you sleep at the Ponte Dei Cavalli 41, then you'll have a direct access from the house (requires a key, do not try to access the spot from here if you don't sleep there: This is a private access).
Most boulders require just 1 crashpad but the main ones ("En Cavale" and "Crepition") need at least 2 and if possible someone to protect your falls.