If you look at a map of Seminyak it will give you an impression that Seminyak consists of just a number of streets, such as Jalan Raya Seminyak or Jalan Petitinget..
These street are the main streets that run through town and where you can find the shops, restaurants and resorts.
However in between these streets there is a maze of alleys, some so narrow that cars coming from both sides can not pass each other.
Many private Bali luxury villas a located in these alleys and they can be pretty difficult to find. So if your driver is not that familiar here, it might be wise to bring a map of Seminyak with your villa on it.
Luckily most villas provide airport pick up, so upon arrival don't need to worry about getting lost.
But let me try to give some points so it will be easier to find you way around this village...

When walking
around you can bump into the most
odd looking
creatures...
There is one main road running straight through Seminyak called Jalan Raya Seminyak. Traffic is crazy at this street and you can bet on heavy traffic from early afternoon till the beginning of the evening.
So try to avoid this street by car or motor bike when you're in a hurry.
Nevertheless if you don't mind going for a walk you're lucky because this street has a wonderful pavement to walk on.
This is the place where you can find the most fashionable boutiques and other shops selling jewelry, art, furniture, souvenirs but also the usual tourist trade.
Map of Seminyak
The restaurants and other interesting places are found on the east side of Jalan Raya Seminyak, towards the beach. Jalan Double Six is basically the border between Legian and Seminyak and here you can find clubs and great restaurants next to the beach.
The top-end and most popular restaurants on the other hand are all on Jalan Oberoi (also called Jalan Laksmana or Jalan Kayu Aya) and a few fancy restaurants have opened their doors on the connecting street called Jalan Petitenget.
Besides clubbing at Double Six you can also head towards Jalan Dhyana or Jalan Abimanyu where many bars and clubs are found.

I think the Seminyak Bali area is not really the place for walking, as most shops and restaurants are scattered around and located along the long busy main street Jalan Raya or within narrow alleys.
So to make life more easier (and hey, you are on a holiday) you can better just take one of the many taxis that drive around town till late in the evening. The taxi fare will be around Rph. 20.000 since to the airport you pay around Rph. 50.000.
Most villas in Seminyak however offer a shuttle service or a private car with driver that will take you around the village.
Another option you could consider is to rent a car or even better a motor bike.

At Petitinget beach in Seminyak Bali
Besides the regular Yamaha or Honda motorbike that everybody seems to drive around on the island, you can even find heavy custom made motorbikes that will have your heart skip a beat.
If you want to take it somewhat slower, there are many places that rent bicycles. Some villas are even able to arrange one that includes gears, suspension etc.
Don't be worried about getting lost when touring around the village by yourself. You won't be needing a map of Seminyak. The streets can be a bit confusing at first, but at the end all streets seem to end at the beach...