Making outdoors safe

I am just wondering what people have done to make their outside area safe for baby.

We live on a cul de sac we have a big back yard but the path leading down to it is not fenced, so technically when DS can walk he could get up to the road, obviously I would supervise him and that is unlikely to happen but I want to cover all my bases as we all know how quickly they can move.

Do we need to get someone to build a gate? Or is there anything you can buy like that, for outside? Do the indoor gates work for outdoors?

Also we have a sliding door at the front of the house rather than a front door, so we need to find a way to have that open but so the baby can't get out. What have people done with this?

With summer coming and him on the verge of walking I will make sure he goes outside a lot to play but want him to be safe as possible.

Our place is the same. Sliding door instead of front door, and unfenced driveway. We have a regular baby gate across the doorway (in front of the slidey part, if that makes sense). Stops my 2.5yr old DD getting out. We got it last summer as I wanted to be able to keep the door open without her escaping (which she did once ).

You can put gates in the sliding door track, then have a bit of wood at the other end so its locked both ways.

I would def fence the outside, he might get out one day without you realising, at least you will know he cant escape unlike old house. Also make syre there are no water containers for him to fall into, and nothing breakable.

We've fenced our outside area - turned out to be just in time cos DD can now open the lock on the french doors and let herself out. It's really great to be able to just let her go hooning round the deck and back lawn too, without keeping a constant eye on her.