Don't bother with the block drain on newer models. I hear it's a real
PITA to reach. A (possibly) easier solution that shouldn't require
getting under the
car:

1) Drain radiator with heater on full-open
2) D/c upper radiator hose from cylinder head & remove and replace the
thermostat (with honda OEM).
3) D/c lower radiator hose from radiator side, and aim it into your
drain pan. This
should drain 85% of the block.
4) Stick garden hose into cylinder head where termostat was removed and
blast it until the lower-rad hose runs clear (shouldn't take much at
all.
5) Wait for  draining to finish, reconnect all hoses, replace
thermostat, etc.. and fill system with about 55% coolant 45% water to
make up for whatever
water was residual in the block after flushing.

PS: Many people swear against tap water, but YMMV. My opinion is that
if you use a good silicate free coolant, then this shouldn't be a big
issue assuming you flush every few years. I guess you should use your
best judgement since you know your local water better.

Is this a 4 cyl or 6?  The bolt is hopeless on the 4, forget about it.

My 2000 TL (3.2 V6) actually has a block drain that looks more like a
bleeder and is actually usable.  Its not torqued off the map and is
relatively easy to get to  (though only from underneath on the passenger
side (assuming US car)).  If you have the 6, do a little more homework and
see if it has the usable drain.  If you have it, it is definitely easier
than removing hoses, etc.